Privacy Policy for the "TTAR: Table Tennis" Mobile Application

Version: 3

Effective as of: 09/29/2026

First published: 08/08/2025

1. Introduction

Welcome to the "TTAR: Table Tennis" application! We value your privacy and are committed to protecting your personal data. This Privacy Policy describes what data we collect, how we use it, and what measures we take to protect it.

This Policy applies not only to the mobile application but also to its related services: the web interface and the Telegram bot. Throughout this document, they are collectively referred to as the "application" or the "service".

By using our application, you agree to the terms of this Privacy Policy. If you do not agree with any of the provisions, please do not use the application.

2. What Data We Collect

To ensure the functionality of the application and improve the user experience, we may collect the following data:

• Approximate Location: We use data about your approximate location (e.g., based on GPS, Wi-Fi, or mobile network data) to facilitate finding nearby players. This data does not allow us to determine your exact location and is used solely to provide the application's functionality and to compile anonymized statistics (for example, the distribution of players by country).
• Email Address or Telegram Account: We may request your email address or Telegram account for authentication, registration, and account recovery purposes.
• Phone Number: If, when signing in via Telegram, you allow your phone number to be shared with us, we receive it from Telegram and store it. This number is not shown to anyone; it is used once to pre-fill the contact phone number in your profile. You can also enter or change your contact phone number yourself — in your profile or when registering for a tournament. You decide who can see it (see the "Profile Data and Its Visibility" section).
• Additional Profile Details: You may optionally specify in your profile your gender, year of birth, country and city of residence, country and city of birth, as well as links to your profiles in other rating systems. Filling in these fields is optional; you set their visibility to other users separately for each field.
• Avatar Image: We may use a profile picture (avatar) to make it easier for other players to find you and to personalize interactions within the application.
• Data from External Tournament Systems: If your profile in the application is linked to a profile in an external tournament or rating system (for example, the RTTF system; integration with other similar systems may be added in the future), we may obtain and store data associated with that profile: full name (last name, first name, and patronymic), year of birth, and city. This data is obtained from the corresponding external system and is used to correctly match you with your profile and to submit the results of the tournament matches you have played to that system. See the "Integration with External Tournament Systems" section below for details.
• Additional Personal Data: In the future, we may collect other personal data not listed above if it is necessary to improve user interaction and provide new application features. All such data will only be collected with your prior consent and used exclusively for the specified purposes. We guarantee that this data will not be shared with third parties, except as required by law.

We do not collect or process data not specified in this Privacy Policy without your prior consent.

3. How We Use Your Data

Collected data is used for the following purposes:

• Ensuring the operation of key application features, such as finding nearby players.
• Authentication and management of the user account.
• Improving the user experience and providing personalized features.
• Displaying your profile (including avatar and the details you have chosen to show) to other users to facilitate interaction.
• Enabling the organizers of tournaments you register for to contact you, if you have allowed your phone number to be shared with them.
• Matching your profile with a profile in an external tournament system and submitting the results of your tournament matches to that system.
• Compiling anonymized statistics on the use of the service.

We do not use your data for purposes not specified in this Privacy Policy without your prior consent.

4. Sharing Data with Third Parties

We do not share your data with third parties, except in the following cases:

• Submitting the results of the tournament matches you have played, together with the data necessary to identify them, to an external tournament or rating system, if your profile is linked to such a system. This transfer is carried out solely for the purpose of recording your match results and is described in more detail in the "Integration with External Tournament Systems" section.
• If required by law or a court order.
• If necessary to protect our rights, property, or safety.

5. Profile Data and Its Visibility

For each important profile field, you decide whether to show it to other users. You can change these settings at any time in your profile. You yourself and the service administrators can always see all of your profile data.

• Contact phone number — never shown to unauthenticated visitors. You choose one of the following options: do not show it to anyone (the default); share it with the organizers of tournaments you register for yourself; also show it to other authenticated users on your player card.
• Phone number for a specific tournament — when registering for a tournament, you may provide a phone number that only the organizers of that tournament will see. It is not published in your profile. If you ask for this phone number to be remembered, it will be saved in your profile and shared with the organizers of subsequent tournaments you register for.
• Telegram username — visible to other authenticated users by default; not shown to unauthenticated visitors. You can turn off its display.
• Country and city of residence — visible to everyone by default, including unauthenticated visitors. You can turn off their display.
• Country and city of birth, year of birth — hidden by default; you can make them visible to everyone.
• Gender — if you have specified it, it is visible to everyone. To avoid disclosing your gender, simply do not specify it. Once specified, gender cannot be changed in the application; if it was specified incorrectly, please contact us.
• Link to your profile in an external tournament system (for example, RTTF) and your rating on its scale — hidden by default; you can make them visible to everyone. Regardless of this setting, the link is visible to the organizers and confirmed participants of tournaments in which you have confirmed your participation (see the "Integration with External Tournament Systems" section).
• Links to profiles in other rating systems — visible to everyone by default. You can turn off their display.

Your phone number is shared with organizers so that they can contact you regarding the tournament. Organizers are other users of the service, not our partners or contractors: we do not enter into agreements with them and cannot control how they use the phone number they receive. Turning off sharing hides your phone number within the service but cannot revoke a number that an organizer has already seen.

6. Integration with External Tournament Systems

The application allows a player's profile to be linked to their profile in an external tournament or rating system (for example, the RTTF system; integration with other similar systems may be added in the future). Such a link is needed so that the results of the tournament matches you have played are correctly recorded in the corresponding external system.

When a link is established, we obtain and store the data associated with the specified profile: full name (last name, first name, and patronymic), year of birth, and city. This data is obtained from the corresponding external system or is provided by you or the organizer, and is used by us solely to match players and to submit their match results.

A link between profiles may be established in one of the following ways:

• By you personally. By specifying your profile in the external system or providing your data to register your matches, you thereby consent to the processing of this data and its transfer to the external system for the purposes described here.
• By the organizer of a tournament in which you participate. In order to record the tournament results, the organizer may link your profile to a profile in the external system on your behalf. In this case, the data is processed on the basis of our and the organizer's legitimate interest — to ensure that the results of the tournament held are recorded. When such a link is made, we notify you of it, and you may at any time object to it and unlink the profile (see below). Organizers are other users of the service, not our partners or contractors: we do not enter into agreements with them and cannot control what data about you they enter or how they use it. If a link was made by mistake or without your knowledge, unlink the profile or contact us.

A link established on your behalf is considered unconfirmed until you yourself confirm ownership of the profile. You may at any time unlink the external system profile from your account and object to our further use of the data obtained from it.

After you confirm your participation in a tournament, your data associated with the external system (full name, and, where available, year of birth and city) becomes visible to the organizer and other confirmed participants of that tournament — this is necessary for forming the line-ups and brackets and for recording the results. Before your participation is confirmed, this data is not shown to other participants of the tournament.

Data obtained from the external system is stored (cached) in our service and may be periodically updated from the external system in order to stay current. When a profile is unlinked, this data is deleted or anonymized, except for information necessary to preserve the integrity of match results already recorded.

Important: tournament results are the shared data of all its participants. By registering for and participating in a tournament, you agree that the results of the matches you have played may be transferred to an external tournament system in order to be recorded. As a rule, it is not possible to withdraw the transfer of results already played: removing them would distort the tournament outcome and affect the results and ratings of other players. Therefore, objecting to processing and unlinking your profile stop the further use of your personal data but do not cancel match results that have already been transferred.

If you do not want your identifying data to be transferred to the external system, and the external system allows it, the results of your matches may be transferred under a pseudonym (a conventional playing name that does not allow you to be identified) instead of your full name. The availability of a pseudonym depends on the specific external system and is not supported by all of them.

We transfer to the external system only the data necessary to identify the player and record their match results, and we do not transfer any other information about you there. The processing of data within the external system after its transfer is governed by the rules and privacy policy of that external system, over which we have no control.

7. Legal Bases for Processing

We process your data on the following bases:

• Your consent — when you provide data yourself (for example, email address, avatar, location, phone number, gender, year and place of birth, place of residence), allow Telegram to share your phone number with us, enable the display of your profile details to other users, or link your profile to an external tournament system on your own.
• Performance of the service — processing necessary for the operation of the application features you use (authentication, participation in tournaments, displaying your profile to other participants).
• Legitimate interest — when the organizer links your profile to an external system on your behalf in order to ensure that the results of a tournament in which you participate are recorded. In this case, we balance this interest against your rights and provide you with the ability to object and unlink the profile.
• Legal requirement — when the processing or disclosure of data is necessary to comply with the law or a court order.

8. Minors

The application may also be used by minors — either on their own or through participation in tournaments to which an organizer adds them. We pay special attention to protecting the data of minors:

• the year of birth and contact phone number of minor users are not displayed to other users, even if their display is enabled in the profile settings (a user's status as a minor is determined by the year of birth specified in the profile or obtained from an external tournament system);
• a minor's data is processed only to the extent necessary for participation in the tournament and for recording its results, and with the consent of their parent or other legal representative where such consent is required by applicable law.

If you are a parent or legal representative and believe that a minor's data was provided without proper consent, please contact us using the contact details below — we will delete such data, subject to the limitations related to the integrity of tournament results that have already been recorded.

9. Data Storage and Protection

We take reasonable measures to protect your data from unauthorized access, alteration, disclosure, or destruction. However, no method of data transmission over the internet or method of storage can be completely secure, and we cannot guarantee absolute security.

Your data is stored only for the time necessary to fulfill the purposes specified in this Privacy Policy or as required by law.

10. Your Rights

You have the right to:

• Request access to your data.
• Request the deletion of your data (except for information we are required to retain to preserve the integrity of tournament results already recorded or as required by law).
• Restrict the processing of your data.
• Update or modify the data you have provided (e.g., email address, avatar, phone number, or profile details) and delete optional profile details.
• Change the visibility settings of your profile details for other users at any time.
• Unlink a linked external tournament system profile and object to the further use of the data obtained from it (bearing in mind that match results already transferred cannot be withdrawn — see the "Integration with External Tournament Systems" section).
• Request that the results of your matches be transferred to the external system under a pseudonym instead of identifying data — where the external system supports it.

To exercise these rights, please contact us using the contact information provided below.

11. Changes to the Privacy Policy

We may periodically update this Privacy Policy. All changes will be published in the application, and the last update date will be revised. We recommend regularly reviewing the Privacy Policy for any changes.

12. Contact Information

If you have any questions or concerns regarding this Privacy Policy, please contact us:

• Email: kot@ttar.app

13. Consent

By using the "TTAR: Table Tennis" application and its related services, you confirm that you have read this Privacy Policy and agree to its terms.