Privacy Policy for the Tennis Serve Speed Tracker 

Status: July 03, 2026

Preamble

This Tennis Serve Speed Tracker (in the following “App”) is provided by Dr. André Zenner, Westpreußenring 1, 66121 Saarbrücken, Germany, (in the following “us”) as data controller. Mail: zennerdev@web.de  Tel. +49 178 5898066

The purpose of the Tennis Serve Speed Tracker App is to track the speed of tennis serves with the device. Specifically, the App captures audio and video data of the serve to calculate key parameters of the serve, such as the trajectory of the serve, the angle of the serve, and the speed of the serve, and communicates these parameters to the user via the display and sound output.

When you use the App, we process personal data about you and access information on your device. Personal data means any information relating to an identified or identifiable natural person. The data protection terms used correspond to the definitions according to the General Data Protection Regulation (GDPR). 

In this privacy policy (in the following “Privacy Policy”) we would like to inform you which personal data we process, which information from your device we access when you use the App and how we handle this data. Also, we would like to inform you about the legal basis for the processing of your data and, insofar as the processing is necessary to protect our legitimate interests, also about our legitimate interests.

You can access this privacy policy at any time under the menu item “Privacy Policy” within the App.

1. Information on the processing of your data

Certain information is already processed automatically as soon as you use the App. We have listed below which personal data and information is processed:

1.1 Information collected during download

When downloading the App, certain required information is transmitted to the App store selected by you (e.g. Google Play or Apple App Store), in particular the user name, the email address, the customer number of your account, the time of the download, payment information as well as the individual device identification number may be processed. The processing of this data is carried out exclusively by the respective App store and is beyond our control.

1.2 Information that is collected

The App does not collect any user data.  

If the user makes an in-app purchase, this transaction is processed via the respective App store (e.g. Google Play or Apple App Store). In the context of this transaction, the App store might collect user data required to perform the transaction. The processing of this data is carried out exclusively by the respective App store and is beyond our control. More information about the data Google might collect can be found in the Google Play Terms of Service (https://play.google.com/about/play-terms/), the Google Privacy Policy (https://policies.google.com/privacy), and the Google Payments Privacy Notice (https://wallet.google.com/files/privacy.html). More information about the data Apple might collect can be found in the Apple Media Services Terms and Conditions (https://www.apple.com/legal/internet-services/itunes/) and the Apple Customer Privacy Policy (https://www.apple.com/legal/privacy/), especially the section on App Store & Privacy (https://www.apple.com/legal/privacy/data/en/app-store/).

Additionally, the App may invite the user to rate the App via the App store's native in-app review dialog (Google Play In-App Review API on Android, Apple StoreKit on iOS). This dialog is provided and fully controlled by the respective App store; no review content or rating data is collected or processed by us.

1.3 Use of the App

You can enter, manage and edit various information, tasks and activities. This information includes, in particular, following data. To capture the tennis serves, the App will record images (i.e., videos) with the camera selected by the user in the App’s settings. In addition, the App will also record audio clips of the serves with the microphone selected by the user in the App’s settings. Recorded image and audio data is only stored in the device’s Random Access Memory (RAM) and is deleted when the App is closed. App settings and serve statistics are locally stored on the device. No image or video data is ever leaving the device and the processing of the image and video data, as well as of the settings and statistics, happens locally on the device. This is required to provide the main functionality of the App.  

The App also requires the following permissions:

• Access to the device’s or connected cameras and permission for recording images of the serves.  

• Access to the device’s or connected microphones and permission for recording audio clips of the serves. This also includes the permissions to connect to paired bluetooth devices and to modify global audio settings.  

• Access to the internet to process in-app purchases.  

• Read and write access to the device storage to manage App settings and serve statistics.  

• Billing permission to realize transactions via Google Play or the Apple App Store.

The processing and use of data is carried out to provide the service. The storage and access to the data is justified by the fact that the processing is absolutely necessary within the meaning of Section 25 (2) No. 2 TDDDG in order to be able to provide the service of the App expressly requested by you. The data processing is justified because it is necessary for the performance of the contract between you as the data subject and us pursuant to Art. 6 (1) lit. b GDPR for the use of the App.

2. Contact

When you contact us by e-mail or telephone, the data you provide (your e-mail address, possibly your name and telephone number) will be stored by us in order to answer your questions. 

The legal basis for processing the data you provide is our legitimate interest in being able to respond to your email or phone call using the data you have provided, for example by answering your enquiry. If necessary, the processing is also carried out to fulfil the contract with you or to carry out pre-contractual measures. Depending on the nature of your enquiry, data processing may also be based on your consent.

You can object to the processing of your personal data on the basis of our legitimate interest at any time. To exercise your right to object, please contact us by e-mail or post at the above address.

If the data processing is based on your consent, you have the right to withdraw your consent at any time with effect for the future. To exercise your right of cancellation, please contact us by e-mail or post at the above address. The legality of the data processing that has already taken place remains unaffected by the cancellation.

3. Transfer and transmission of data

In addition to the cases explicitly mentioned in this Privacy Policy, your personal data will according to Art. 6 (1) lit. c GDPR in conjunction with national legal requirements and insofar as this is necessary to comply with obligations to provide information pursuant to Section 21 (1) and (2) TDDDG or pursuant to Section 22 TDDDG (2) only be transferred without your explicit prior consent to law enforcement agencies or other authorities if this is permitted or required by law.

4. Data transfers to third countries

The App does not transfer any user data to third parties and does not share any user data with third parties. If the user makes an in-app purchase, this transaction is processed via Google Play or the Apple App Store. In the context of this transaction, Google or Apple might transfer data to servers outside the European Economic Area (EEA). More information about the data Google might transfer can be found in the Google Play Terms of Service  (https://play.google.com/about/play-terms/), the Google Privacy Policy (https://policies.google.com/privacy), and the Google Payments Privacy Notice (https://wallet.google.com/files/privacy.html). More information about the data Apple might collect can be found in the Apple Media Services Terms and Conditions (https://www.apple.com/legal/internet-services/itunes/) and the Apple Customer Privacy Policy (https://www.apple.com/legal/privacy/), especially the section on App Store & Privacy (https://www.apple.com/legal/privacy/data/en/app-store/). Similarly, when the App requests a user review via the native in-app review dialog, this interaction is handled entirely by the respective App store (Google Play In-App Review API / Apple StoreKit); no data is collected or processed by us in this context.

Google Ireland Limited („Google“)  Gordon House, Barrow Street, Dublin 4, Irland  

Google Commerce Limited  70 Sir John Rogerson's Quay, Dublin 2, D02R296, Irland 

Google Payment Ireland Limited 70 Sir John Rogerson's Quay, Dublin 2, Irland 

Apple Inc., One Apple Park Way, Cupertino, CA 95014, USA

Apple Distribution International Ltd., Hollyhill Industrial Estate, Hollyhill, Cork, Republic of Ireland

5. Changes of purpose

Your personal data will only be processed for purposes other than the aforementioned if a legal provision permits this or if you have consented to the changed purpose of the data processing. In the event of further processing for purposes other than those for which the data was originally collected, we will inform you of these other purposes prior to further processing and provide you with all other relevant information.

6. Data retention

We will delete or anonymise your personal data as soon as it is no longer necessary for the purposes for which we collected or used it in accordance with the aforementioned paragraphs. 

Specific statements in this Privacy policy or legal requirements for the retention and deletion of personal data, in particular data that we are required to retain for tax law reasons, remain unaffected.

7. Your rights as a data subject

7.1 Right to information

You have the right to receive information from us at any time upon request about the personal data processed by us that relate to you within the scope of Art. 15 GDPR. To exercise your right, you can submit a request to the contact details below.

7.2 Right to rectification of inaccurate data

Pursuant to Art. 16 of the GDPR, you have the right to obtain that we rectify personal data relating to you without undue delay if it is inaccurate. Taking into account the purposes of the processing, you also have the right to request us to complete incomplete personal data. To exercise your right, you can submit a request to the contact details below.

7.3 Right to erasure

You have the right to obtain that we erase personal data relating to you under the provisions pursuant to Art. 17 GDPR. This right applies in particular if the personal data is no longer necessary for the purposes for which it was collected or otherwise processed, as well as in cases of unlawful processing, if an objection has been raised or if there is an obligation to erase the data under the laws of the European Union or the laws of the Member State applicable to us. Please also see section 5 of this Privacy policy regarding the retention period of your personal data. To exercise your right, you can submit a request to the contact details below.

7.4 Right to restriction of processing

You have the right to obtain the restriction of processing in accordance with Art. 18 GDPR. This right applies in particular if the accuracy of the personal data is contested between the user and us, for the period enabling us to verfiy the accuracy of the personal data, as well as in the event that the user obtains his right to restriction of processing instead of erasure; furthermore, in the event that the data is no longer necessary for the purposes pursued by us, but the user requires them for the establishment, exercise or defence of legal claims, as well as if the successful exercise of an objection is still contested between us and the user. To exercise your right, you can submit a request to the contact details below.

7.5 Right to data portability

You have the right to obtain the personal data concerning you that you have provided to us in a structured, commonly used, machine-readable format in accordance with Art. 20 GDPR. To exercise your right, you can submit a request to the contact details below.

8. Right of objection

You have the right to object at any time, on grounds relating to your particular situation, to the processing of personal data concerning you which is carried out, inter alia, on the basis of Art. 6 (1) lit. e or f GDPR, in accordance with Article 21 GDPR. We will no longer process your personal data unless we can demonstrate compelling legitimate grounds for the processing which override your interests, rights and freedoms, or if the processing serves the establishment, exercise or defence of legal claims.

9. Right of Appeal

You also have the right to lodge an appeal with a supervisory authority in the event of complaints. The competent data protection authority for us is:  Unabhängiges Datenschutzzentrum Saarland,  Fritz-Dobisch-Str. 12, 66111 Saarbrücken, E-Mail:  poststelle@datenschutz.saarland.de. 

10. Contact

If you have any questions or comments about our handling of your personal data, or if you wish to exercise the data subject rights set out in sections 6 and 7, please contact  us under the aforementioned contact details in the Preamble.

11. Changes to this Privacy Policy

We always keep this Privacy Policy up to date. The current version of the Privacy Policy is always available under “Privacy Policy” within the App.

12. Information for Users in Australia

If you are located in Australia, you may address any privacy-related questions or concerns to our Data Controller, who is responsible for overseeing issues related to this Privacy Policy.

12.1 The Data Controller is:

Dr. André Zenner
Westpreußenring 1
66121 Saarbrücken
Germany
Mail: zennerdev@web.de
Tel. +49 178 5898066

12.2 Cross-Border Data Transfers

Your personal information may be stored or processed outside Australia. When transferring your data internationally, we will take reasonable steps to ensure that your information is protected consistent with the Australian Privacy Principles.

In addition to reaching out to our Data Controller, you also have the right to lodge a complaint with the Office of the Australian Information Commissioner (OAIC) if you believe your privacy rights have been infringed. The OAIC can be contacted directly through their website:
https://www.oaic.gov.au
https://www.oaic.gov.au/privacy/privacy-complaints/lodge-a-privacy-complaint-with-us 

13. Information for Users in New Zealand

If you are located in New Zealand, you may address any privacy-related questions or concerns to our Data Controller, who is responsible for overseeing issues related to this Privacy Policy.

13.1 The Data Controller is:

Dr. André Zenner
Westpreußenring 1
66121 Saarbrücken
Germany
Mail: zennerdev@web.de
Tel. +49 178 5898066

13.2 Cross-Border Data Transfers

Under the Privacy Act 2020, we will ensure that your personal information is protected when transferred outside New Zealand. Specifically, we will confirm that the receiving country has comparable privacy protections.

In addition to reaching out to our Data Controller, you also have the right to lodge a complaint with the Office of the Privacy Commissioner (OPC) if you believe your privacy rights have been infringed. The OPC can be contacted directly through their website:
https://www.privacy.org.nz/
https://www.privacy.org.nz/your-rights/making-a-complaint-to-the-privacy-commissioner/ 

14. Information for Users in the United States

Our app complies with applicable U.S. privacy laws, including the Children's Online Privacy Protection Act (COPPA), and other relevant state privacy regulations. Below is an explanation of how we address these laws:

14.1 Introduction and Scope  

This Privacy Policy applies to all users of our app in the United States. We do not collect, store, process, share, or sell any personal information as defined by U.S. privacy laws. This includes, but is not limited to: names, addresses, email addresses, location data, IP addresses, or device identifiers.  

14.2 In-App Transactions and Third-Party Policies  

Please note that Google, as the provider of the Google Play Store and associated services, or Apple, as the provider of the Apple App Store and associated services, may collect data related to In-App Transactions or purchases (e.g., payment details or transaction records). The collection and processing of this data is carried out exclusively by the respective App store and is beyond our control. More information about the data Google might collect can be found in the Google Play Terms of Service (https://play.google.com/about/play-terms/), the Google Privacy Policy (https://policies.google.com/privacy), and the Google Payments Privacy Notice (https://wallet.google.com/files/privacy.html). More information about the data Apple might collect can be found in the Apple Media Services Terms and Conditions (https://www.apple.com/legal/internet-services/itunes/) and the Apple Customer Privacy Policy (https://www.apple.com/legal/privacy/), especially the section on App Store & Privacy (https://www.apple.com/legal/privacy/data/en/app-store/). 

We do not collect or process any data related to these transactions, and any inquiries regarding such data should be directed to Google or Apple.  

The App may also display the App store's native in-app review dialog (Google Play In-App Review API / Apple StoreKit). This interaction is handled exclusively by the respective App store; we do not collect or process any data related to it.

14.3 No Data Collection by Our App

We want to be transparent and confirm that our app does not automatically or manually collect:  

• Personal Information (e.g., names, email addresses)  

• Technical or usage data (e.g., IP addresses, device IDs, location data, or analytics)  

• Tracking data (e.g., cookies or other tracking technologies)  

As such, no user information is processed, shared, or stored by us.

14.4 No Data Collection from Children (COPPA Compliance)

In compliance with the Children’s Online Privacy Protection Act (COPPA), we confirm that our app is not directed at children under the age of 13, and we do not collect any personal data from children. If we discover that a child under 13 has provided us with personal data, we will take immediate steps to delete such information.  

Parents or guardians with concerns can contact us at the contact information provided below.  

14.5 Compliance with Applicable U.S. Privacy Laws 

Since we do not collect any data with the app, the app is compliant with the privacy laws in the following U.S. states: Alabama, Alaska, Arizona, Arkansas, California, Colorado, Connecticut, Delaware, Florida, Georgia, Hawaii, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Montana, Nebraska, Nevada, New Hampshire, New Jersey, New Mexico, New York, North Carolina, North Dakota, Ohio, Oklahoma, Oregon, Pennsylvania, Rhode Island, South Carolina, South Dakota, Tennessee, Texas, Utah, Vermont, Virginia, Washington, West Virginia, Wisconsin, Wyoming.

This includes compliance with the California Consumer Privacy Act (CCPA). Under the CCPA, businesses are required to disclose if they sell personal information. We confirm that we do not sell or transfer any personal information to third parties, including advertisers or analytics providers.  

14.6 Contact Information  

If you have any questions, concerns, or requests related to this Privacy Policy or your privacy rights under U.S. law, please contact us at:  

Email: zennerdev@web.de  

Postal Address:

Dr. André Zenner
Westpreußenring 1
66121 Saarbrücken
Germany
Tel. +49 178 5898066

We are committed to addressing any concerns promptly and transparently.  

14.7 Policy Updates

We reserve the right to update this Privacy Policy to reflect changes in our practices, legal requirements, or operational needs. The date of the last update will always be displayed at the top of this Privacy Policy.  

14.8 Summary  

This Privacy Policy ensures compliance with both the General Data Protection Regulation (GDPR) for European users and applicable U.S. privacy laws, including the CCPA and COPPA. While our app does not collect any personal data, we remind users that third parties like Google or Apple may process data related to in-app purchases or other transactions under their own Privacy Policies.

15. Information for Users in the United Kingdom

If you are located in the United Kingdom, you may address any privacy-related questions or concerns to our Data Controller, who is responsible for overseeing issues related to this Privacy Policy.

15.1 The Data Controller is:

Dr. André Zenner
Westpreußenring 1
66121 Saarbrücken
Germany
Mail: zennerdev@web.de
Tel. +49 178 5898066

15.2 Cross-Border Data Transfers

We process your personal data in accordance with the UK General Data Protection Regulation (UK GDPR) and the Data Protection Act 2018, as amended by the Data (Use and Access) Act 2025. As explained in this Privacy Policy, the App itself does not collect, store, or transfer any user data. Your personal information may be stored or processed outside the United Kingdom. Any such processing occurs solely through Google or Apple in connection with the App store services described in this Privacy Policy (such as in-app purchases and the native in-app review dialog) and is beyond our control. Where such international transfers occur, we will take reasonable steps to ensure that your information is protected consistent with the safeguards required under the UK GDPR.

In addition to reaching out to our Data Controller, you also have the right to lodge a complaint with the Information Commissioner's Office (ICO) if you believe your privacy rights have been infringed. The ICO can be contacted directly through their website:
https://ico.org.uk/
https://ico.org.uk/make-a-complaint/ 

16. Information for Users in Canada

Our App complies with applicable Canadian privacy laws, including the federal Personal Information Protection and Electronic Documents Act (PIPEDA) and the substantially similar private-sector privacy laws of the provinces of Alberta, British Columbia, and Quebec. Below is an explanation of how we address these laws:

16.1 Introduction and Scope

This Privacy Policy applies to all users of our App in Canada. We do not collect, store, process, share, or sell any personal information as defined by Canadian privacy laws. This includes, but is not limited to: names, addresses, email addresses, location data, IP addresses, or device identifiers.

16.2 In-App Transactions and Third-Party Policies

Please note that Google, as the provider of the Google Play Store and associated services, or Apple, as the provider of the Apple App Store and associated services, may collect data related to In-App Transactions or purchases (e.g., payment details or transaction records). The collection and processing of this data is carried out exclusively by the respective App store and is beyond our control. More information about the data Google might collect can be found in the Google Play Terms of Service (https://play.google.com/about/play-terms/), the Google Privacy Policy (https://policies.google.com/privacy), and the Google Payments Privacy Notice (https://wallet.google.com/files/privacy.html). More information about the data Apple might collect can be found in the Apple Media Services Terms and Conditions (https://www.apple.com/legal/internet-services/itunes/) and the Apple Customer Privacy Policy (https://www.apple.com/legal/privacy/), especially the section on App Store & Privacy (https://www.apple.com/legal/privacy/data/en/app-store/). 

We do not collect or process any data related to these transactions, and any inquiries regarding such data should be directed to Google or Apple.

The App may also display the App store's native in-app review dialog (Google Play In-App Review API / Apple StoreKit). This interaction is handled exclusively by the respective App store; we do not collect or process any data related to it.

16.3 No Data Collection by Our App

We want to be transparent and confirm that our App does not automatically or manually collect:

• Personal Information (e.g., names, email addresses)

• Technical or usage data (e.g., IP addresses, device IDs, location data, or analytics)

• Tracking data (e.g., cookies or other tracking technologies)

As such, no user information is processed, shared, or stored by us.

16.4 Compliance with Applicable Canadian Privacy Laws

Since we do not collect any data with the App, the App is compliant with the applicable Canadian privacy laws, including the federal Personal Information Protection and Electronic Documents Act (PIPEDA). PIPEDA applies to private-sector organizations engaged in commercial activity across all Canadian provinces and territories. Where personal information is collected, used, or disclosed entirely within a province that has enacted substantially similar private-sector privacy legislation — namely Alberta, British Columbia, and Quebec — that province's law may apply instead of PIPEDA. These provincial laws are Quebec's Act respecting the protection of personal information in the private sector (as modernized by Law 25), the Personal Information Protection Act (PIPA) of Alberta, and the Personal Information Protection Act (PIPA) of British Columbia. Users located in all other Canadian provinces and territories are covered by PIPEDA.

Under these laws, organizations are required to disclose the personal information they collect and the purposes for which it is used. We confirm that we do not collect, use, disclose, or sell any personal information to third parties, including advertisers or analytics providers.

16.5 Cross-Border Data Transfers

Your personal information may be stored or processed outside Canada. Any such processing occurs solely through Google or Apple in connection with the App store services described in this Privacy Policy (such as in-app purchases and the native in-app review dialog) and is beyond our control. Where such international transfers occur, we will take reasonable steps to ensure that your information is protected consistent with applicable Canadian privacy laws.

In addition to reaching out to our Data Controller, you also have the right to lodge a complaint with the Office of the Privacy Commissioner of Canada (OPC) if you believe your privacy rights have been infringed. The OPC can be contacted directly through their website:
https://www.priv.gc.ca/en/
https://www.priv.gc.ca/en/report-a-concern/file-a-formal-privacy-complaint/ 

If you are a resident of Alberta, British Columbia, or Quebec, you may alternatively lodge a complaint with your respective provincial privacy authority:

In Alberta, the Office of the Information and Privacy Commissioner of Alberta (OIPC):
https://oipc.ab.ca/ 

In British Columbia, the Office of the Information and Privacy Commissioner for British Columbia (OIPC):
https://www.oipc.bc.ca/ 

In Quebec, the Commission d'accès à l'information du Québec (CAI):
https://www.cai.gouv.qc.ca/english 

16.6 Contact Information

If you have any questions, concerns, or requests related to this Privacy Policy or your privacy rights under Canadian law, please contact us at:

Email: zennerdev@web.de  

Postal Address:

Dr. André Zenner
Westpreußenring 1
66121 Saarbrücken
Germany
Tel. +49 178 5898066

We are committed to addressing any concerns promptly and transparently.

16.7 Policy Updates

We reserve the right to update this Privacy Policy to reflect changes in our practices, legal requirements, or operational needs. The date of the last update will always be displayed at the top of this Privacy Policy.

16.8 Summary

This Privacy Policy ensures compliance with both the General Data Protection Regulation (GDPR) for European users and applicable Canadian privacy laws, including PIPEDA and the substantially similar provincial laws of Alberta, British Columbia, and Quebec. While our App does not collect any personal data, we remind users that third parties like Google or Apple may process data related to the App store services described in this Privacy Policy, such as in-app purchases, other transactions, or the native in-app review dialog, under their own Privacy Policies.

17. Information for Users in Brazil

If you are located in Brazil, you may address any privacy-related questions or concerns to our Data Controller, who is responsible for overseeing issues related to this Privacy Policy.

17.1 The Data Controller is:

Dr. André Zenner
Westpreußenring 1
66121 Saarbrücken
Germany
Mail: zennerdev@web.de
Tel. +49 178 5898066

17.2 Cross-Border Data Transfers

We process your personal data in accordance with the Brazilian General Data Protection Law (Lei Geral de Proteção de Dados Pessoais, or LGPD; Law No. 13.709/2018). As explained in this Privacy Policy, the App itself does not collect, store, or transfer any user data. Your personal information may be stored or processed outside Brazil. Any such processing occurs solely through Google or Apple in connection with the App store services described in this Privacy Policy (such as in-app purchases and the native in-app review dialog) and is beyond our control. Where such international transfers occur, we will take reasonable steps to ensure that your information is protected consistent with the safeguards required under the LGPD.

In addition to reaching out to our Data Controller, you also have the right to lodge a complaint with the National Data Protection Authority (Autoridade Nacional de Proteção de Dados, or ANPD) if you believe your privacy rights have been infringed. The ANPD can be contacted directly through their website:
https://www.gov.br/anpd 

18. Information for Users in India

If you are located in India, you may address any privacy-related questions or concerns to our Data Controller, who is responsible for overseeing issues related to this Privacy Policy.

18.1 The Data Controller is:

Dr. André Zenner
Westpreußenring 1
66121 Saarbrücken
Germany
Mail: zennerdev@web.de
Tel. +49 178 5898066

18.2 Cross-Border Data Transfers

We process your personal data in accordance with the Indian Digital Personal Data Protection Act, 2023 (DPDP Act) and the Digital Personal Data Protection Rules, 2025. As explained in this Privacy Policy, the App itself does not collect, store, or transfer any user data. Your personal information may be stored or processed outside India. Any such processing occurs solely through Google or Apple in connection with the App store services described in this Privacy Policy (such as in-app purchases and the native in-app review dialog) and is beyond our control. Where such international transfers occur, we will take reasonable steps to ensure that your information is protected consistent with the safeguards required under the DPDP Act.

In addition to reaching out to our Data Controller, you also have the right to lodge a complaint with the Data Protection Board of India (DPBI) if you believe your privacy rights have been infringed. The official text of the Digital Personal Data Protection Act, 2023 and the Digital Personal Data Protection Rules, 2025 is published by the Government of India on the official India Code repository:
https://www.indiacode.nic.in/handle/123456789/22037 

18.3 Protection of Children

Under the DPDP Act, a child is defined as an individual who has not completed eighteen years of age. The DPDP Act requires verifiable consent of a parent or lawful guardian before a child's personal data is processed, and it prohibits the tracking or behavioural monitoring of children as well as targeted advertising directed at children. As explained in this Privacy Policy, the App does not collect, store, or process any personal data, does not track or profile its users, and does not display any advertising. Accordingly, the App does not process any personal data of children and complies with these requirements. If you are a parent or guardian and have any questions or concerns, you can contact us at the contact details provided in the Preamble.

19. Information for Users in Switzerland

If you are located in Switzerland, you may address any privacy-related questions or concerns to our Data Controller, who is responsible for overseeing issues related to this Privacy Policy.

19.1 The Data Controller is:

Dr. André Zenner
Westpreußenring 1
66121 Saarbrücken
Germany
Mail: zennerdev@web.de
Tel. +49 178 5898066

19.2 Cross-Border Data Transfers

We process your personal data in accordance with the revised Swiss Federal Act on Data Protection (FADP), which entered into force on 1 September 2023. As explained in this Privacy Policy, the App itself does not collect, store, or transfer any user data. Your personal information may be stored or processed outside Switzerland. Any such processing occurs solely through Google or Apple in connection with the App store services described in this Privacy Policy (such as in-app purchases and the native in-app review dialog) and is beyond our control. Where such international transfers occur, we will take reasonable steps to ensure that your information is protected consistent with the safeguards required under the FADP.

In addition to reaching out to our Data Controller, you also have the right to lodge a complaint with the Federal Data Protection and Information Commissioner (FDPIC) if you believe your privacy rights have been infringed. The FDPIC can be contacted directly through their website:
https://www.edoeb.admin.ch/en
https://www.edoeb.admin.ch/en/submitting-a-complaint 

20. Information for Users in Japan

If you are located in Japan, you may address any privacy-related questions or concerns to our Data Controller, who is responsible for overseeing issues related to this Privacy Policy.

20.1 The Data Controller is:

Dr. André Zenner
Westpreußenring 1
66121 Saarbrücken
Germany
Mail: zennerdev@web.de
Tel. +49 178 5898066

20.2 Cross-Border Data Transfers

We process your personal data in accordance with the Japanese Act on the Protection of Personal Information (APPI; Act No. 57 of 2003, as amended). As explained in this Privacy Policy, the App itself does not collect, store, or transfer any user data. Your personal information may be stored or processed outside Japan. Any such processing occurs solely through Google or Apple in connection with the App store services described in this Privacy Policy (such as in-app purchases and the native in-app review dialog) and is beyond our control. Where such international transfers occur, we will take reasonable steps to ensure that your information is protected consistent with the safeguards required under the APPI.

In addition to reaching out to our Data Controller, you also have the right to lodge a complaint with the Personal Information Protection Commission (PPC) if you believe your privacy rights have been infringed. The PPC can be contacted directly through their website:
https://www.ppc.go.jp/en/
https://www.ppc.go.jp/en/contactus/ 

21. Information for Users in Singapore

If you are located in Singapore, you may address any privacy-related questions or concerns to our Data Controller, who is responsible for overseeing issues related to this Privacy Policy.

21.1 The Data Controller is:

Dr. André Zenner
Westpreußenring 1
66121 Saarbrücken
Germany
Mail: zennerdev@web.de
Tel. +49 178 5898066

21.2 Cross-Border Data Transfers

We process your personal data in accordance with the Singapore Personal Data Protection Act 2012 (PDPA). As explained in this Privacy Policy, the App itself does not collect, store, or transfer any user data. Your personal information may be stored or processed outside Singapore. Any such processing occurs solely through Google or Apple in connection with the App store services described in this Privacy Policy (such as in-app purchases and the native in-app review dialog) and is beyond our control. Where such international transfers occur, we will take reasonable steps to ensure that your information is protected consistent with the safeguards required under the PDPA.

In addition to reaching out to our Data Controller, you also have the right to lodge a complaint with the Personal Data Protection Commission (PDPC) if you believe your privacy rights have been infringed. The PDPC can be contacted directly through their website:
https://www.pdpc.gov.sg/
https://www.pdpc.gov.sg/individuals/e-services/report-a-data-protection-concern 

22. Information for Users in South Korea

If you are located in the Republic of Korea (South Korea), you may address any privacy-related questions or concerns to our Data Controller, who is responsible for overseeing issues related to this Privacy Policy.

22.1 The Data Controller is:

Dr. André Zenner
Westpreußenring 1
66121 Saarbrücken
Germany
Mail: zennerdev@web.de
Tel. +49 178 5898066

22.2 Cross-Border Data Transfers

We process your personal data in accordance with the Korean Personal Information Protection Act (PIPA), as amended. As explained in this Privacy Policy, the App itself does not collect, store, or transfer any user data. Your personal information may be stored or processed outside the Republic of Korea. Any such processing occurs solely through Google or Apple in connection with the App store services described in this Privacy Policy (such as in-app purchases and the native in-app review dialog) and is beyond our control. Where such international transfers occur, we will take reasonable steps to ensure that your information is protected consistent with the safeguards required under the PIPA.

In addition to reaching out to our Data Controller, you also have the right to lodge a complaint with the Personal Information Protection Commission (PIPC) if you believe your privacy rights have been infringed. The PIPC can be contacted directly through their website:
https://www.pipc.go.kr/eng/index.do
https://www.pipc.go.kr/eng/user/lgp/ntp/reportingInfringement.do 

22.3 Protection of Children

Under the Personal Information Protection Act, where consent is required to process the personal data of a child under fourteen years of age, a personal information controller must obtain the consent of the child's legal representative (such as a parent or guardian) and verify that such consent has been given. As explained in this Privacy Policy, the App does not collect, store, or process any personal data, does not track or profile its users, and does not display any advertising. Accordingly, the App does not process any personal data of children and complies with these requirements. If you are a parent or guardian and have any questions or concerns, you can contact us at the contact details provided in the Preamble.

23. Information for Users in South Africa

If you are located in South Africa, you may address any privacy-related questions or concerns to our Data Controller, who is responsible for overseeing issues related to this Privacy Policy.

23.1 The Data Controller is:

Dr. André Zenner
Westpreußenring 1
66121 Saarbrücken
Germany
Mail: zennerdev@web.de
Tel. +49 178 5898066

23.2 Cross-Border Data Transfers

We process your personal data in accordance with the South African Protection of Personal Information Act 4 of 2013 (POPIA). As explained in this Privacy Policy, the App itself does not collect, store, or transfer any user data. Your personal information may be stored or processed outside South Africa. Any such processing occurs solely through Google or Apple in connection with the App store services described in this Privacy Policy (such as in-app purchases and the native in-app review dialog) and is beyond our control. Where such international transfers occur, we will take reasonable steps to ensure that your information is protected consistent with the safeguards required under POPIA.

In addition to reaching out to our Data Controller, you also have the right to lodge a complaint with the Information Regulator (South Africa) if you believe your privacy rights have been infringed. The Information Regulator can be contacted directly through their website:
https://inforegulator.org.za/
https://inforegulator.org.za/complaints/ 

23.3 Protection of Children

Under the Protection of Personal Information Act, a child is a person under the age of eighteen years, and the processing of a child's personal information is prohibited unless it is permitted under a specific exception, such as processing carried out with the prior consent of a competent person (for example a parent or guardian). As explained in this Privacy Policy, the App does not collect, store, or process any personal data, does not track or profile its users, and does not display any advertising. Accordingly, the App does not process any personal data of children and complies with these requirements. If you are a parent or guardian and have any questions or concerns, you can contact us at the contact details provided in the Preamble.

24. Information for Users in Mexico

If you are located in Mexico, you may address any privacy-related questions or concerns to our Data Controller, who is responsible for overseeing issues related to this Privacy Policy.

24.1 The Data Controller is:

Dr. André Zenner
Westpreußenring 1
66121 Saarbrücken
Germany
Mail: zennerdev@web.de
Tel. +49 178 5898066

24.2 Cross-Border Data Transfers

We process your personal data in accordance with the Mexican Federal Law on the Protection of Personal Data Held by Private Parties (Ley Federal de Protección de Datos Personales en Posesión de los Particulares, or LFPDPPP). As explained in this Privacy Policy, the App itself does not collect, store, or transfer any user data. Your personal information may be stored or processed outside Mexico. Any such processing occurs solely through Google or Apple in connection with the App store services described in this Privacy Policy (such as in-app purchases and the native in-app review dialog) and is beyond our control. Where such international transfers occur, we will take reasonable steps to ensure that your information is protected consistent with the safeguards required under the LFPDPPP.

In addition to reaching out to our Data Controller, you also have the right to lodge a complaint with the Secretariat of Anti-Corruption and Good Governance (Secretaría Anticorrupción y Buen Gobierno), which is responsible for overseeing compliance with the LFPDPPP, if you believe your privacy rights have been infringed. The Secretariat can be contacted directly through its website:
https://www.gob.mx/buengobierno 

25. Information for Users in Chile

If you are located in Chile, you may address any privacy-related questions or concerns to our Data Controller, who is responsible for overseeing issues related to this Privacy Policy.

25.1 The Data Controller is:

Dr. André Zenner
Westpreußenring 1
66121 Saarbrücken
Germany
Mail: zennerdev@web.de
Tel. +49 178 5898066

25.2 Cross-Border Data Transfers

We process your personal data in accordance with the Chilean Law No. 19.628 on the Protection of Private Life (Ley sobre Protección de la Vida Privada), as amended by Law No. 21.719, which comprehensively reforms Chile's data protection framework and enters into full force on 1 December 2026. As explained in this Privacy Policy, the App itself does not collect, store, or transfer any user data. Your personal information may be stored or processed outside Chile. Any such processing occurs solely through Google or Apple in connection with the App store services described in this Privacy Policy (such as in-app purchases and the native in-app review dialog) and is beyond our control. Where such international transfers occur, we will take reasonable steps to ensure that your information is protected consistent with the safeguards required under Chilean data protection law.

In addition to reaching out to our Data Controller, you also have the right to lodge a complaint with the Personal Data Protection Agency (Agencia de Protección de Datos Personales), the supervisory authority established under Law No. 21.719, once it becomes operational, if you believe your privacy rights have been infringed. The official text of Law No. 21.719, which reforms Law No. 19.628, is published by the Biblioteca del Congreso Nacional (BCN) at:
https://www.bcn.cl/leychile/navegar?idNorma=1209272 

25.3 Protection of Children

Under Law No. 21.719, the personal data of children — defined as individuals under the age of fourteen — may be processed only with the consent of a parent, legal guardian, or the person otherwise responsible for the child's care, unless the law expressly provides otherwise, and the personal data of adolescents is subject to additional protections. As explained in this Privacy Policy, the App does not collect, store, or process any personal data, does not track or profile its users, and does not display any advertising. Accordingly, the App does not process any personal data of children and complies with these requirements. If you are a parent or guardian and have any questions or concerns, you can contact us at the contact details provided in the Preamble.

26. Information for Users in Türkiye (Turkey)

If you are located in Türkiye (Turkey), you may address any privacy-related questions or concerns to our Data Controller, who is responsible for overseeing issues related to this Privacy Policy.

26.1 The Data Controller is:

Dr. André Zenner
Westpreußenring 1
66121 Saarbrücken
Germany
Mail: zennerdev@web.de
Tel. +49 178 5898066

26.2 Cross-Border Data Transfers

We process your personal data in accordance with the Turkish Personal Data Protection Law No. 6698 (Kişisel Verilerin Korunması Kanunu, or KVKK), as amended. As explained in this Privacy Policy, the App itself does not collect, store, or transfer any user data. Your personal information may be stored or processed outside Türkiye (Turkey). Any such processing occurs solely through Google or Apple in connection with the App store services described in this Privacy Policy (such as in-app purchases and the native in-app review dialog) and is beyond our control. Where such international transfers occur, we will take reasonable steps to ensure that your information is protected consistent with the safeguards required under the KVKK.

In addition to reaching out to our Data Controller, you also have the right to lodge a complaint with the Personal Data Protection Authority (Kişisel Verileri Koruma Kurumu) if you believe your privacy rights have been infringed. The Authority can be contacted directly through their website:
https://www.kvkk.gov.tr/en
https://www.kvkk.gov.tr/Icerik/6616/Right-to-Lodge-a-Complaint-with-the-Board- 

27. Information for Users in Ukraine

If you are located in Ukraine, you may address any privacy-related questions or concerns to our Data Controller, who is responsible for overseeing issues related to this Privacy Policy.

27.1 The Data Controller is:

Dr. André Zenner
Westpreußenring 1
66121 Saarbrücken
Germany
Mail: zennerdev@web.de
Tel. +49 178 5898066

27.2 Cross-Border Data Transfers

We process your personal data in accordance with the Ukrainian Law "On Personal Data Protection" No. 2297-VI. As explained in this Privacy Policy, the App itself does not collect, store, or transfer any user data. Your personal information may be stored or processed outside Ukraine. Any such processing occurs solely through Google or Apple in connection with the App store services described in this Privacy Policy (such as in-app purchases and the native in-app review dialog) and is beyond our control. Where such international transfers occur, we will take reasonable steps to ensure that your information is protected consistent with the safeguards required under Ukrainian data protection law.

In addition to reaching out to our Data Controller, you also have the right to lodge a complaint with the Ukrainian Parliament Commissioner for Human Rights (the Ombudsman), who serves as the supervisory authority for personal data protection, if you believe your privacy rights have been infringed. The Commissioner can be contacted directly through their website:
https://www.ombudsman.gov.ua/en
https://www.ombudsman.gov.ua/en/zayavniku