Privacy Policy for the "WaterSort: Tube Color Sort" App

Last updated: November 7, 2026

This document sets out the rules for processing personal data by MatCode Mateusz Arczyński (ul. Portowa 10, 86-200 Chełmno, Poland, NIP 875-156-25-99, REGON 383604557, e-mail: matcode.help@gmail.com) - hereinafter the "Administrator". It has been prepared in accordance with Regulation (EU) 2016/679 ("GDPR").

1. In short

• WaterSort does not require an account, sign-in or an e-mail address. The whole game works offline.
• Your game progress (unlocked levels, stars, records, statistics, daily streak), the game in progress and settings are stored on your device. The Administrator has no access to them.
• Optional: if you are signed in to Apple Game Center (iOS) or Google Play Games (Android), the App can save your progress in that service's cloud and unlock achievements. This data is held by Apple or Google in your account; the Administrator cannot see it. You can turn syncing off and delete the cloud save in the App's settings.
• The App contains no analytics or crash-reporting of its own and does not send your data to the Administrator's servers.
• The App shows Google AdMob banner ads. This is the only component that may process device identifiers - and only after the required consent.
• The App does not use location, camera, microphone, contacts, photos or notifications.

2. Glossary

User - a natural person installing or using the "WaterSort: Tube Color Sort" mobile application (hereinafter: "App").

Service - the App's functionality, including the color-sorting puzzle levels, daily challenge and archive, hints, statistics, achievements and optional progress sync through Apple Game Center or Google Play Games.

3. Scope and purposes of data processing

• Game data (level progress, stars and records, statistics, daily streak dates, the game in progress, settings such as theme, sound and haptics) is stored locally on the device. The Administrator does not receive it, so it is not processed by the Administrator within the meaning of the GDPR.
• Apple Game Center and Google Play Games (optional) - when you are signed in to Game Center (iOS) or Google Play Games (Android), the App uses these services to: (a) unlock achievements based on your progress, and (b) save a copy of your progress (the same game data as above, without the game in progress and without settings) in the service's cloud storage - on iOS through Game Center saved games stored in your iCloud, on Android through Play Games saved games stored in your Google account. Progress from several devices is merged, never overwritten. Sign-in is handled by Apple or Google under their own terms; the App receives your player name and player identifier from the service. The identifier is kept only on your device to detect a change of account; it is not sent to the Administrator. Apple and Google process this data as independent controllers under their own privacy policies; the Administrator has no access to your cloud save or to your achievement data. Legal basis: Art. 6(1)(b) GDPR (providing the feature you chose to use). You can turn syncing off and delete the cloud save at any time in Settings → Game account and cloud; signing out is done in your device's Game Center or Google Play Games settings.
• Advertising (Google AdMob) - the App shows banner ads. The Google Mobile Ads SDK may process advertising identifiers (GAID on Android, IDFA on iOS), IP address, device and OS information, approximate location derived from the IP address, ad-interaction data and diagnostic data in order to serve and measure ads, prevent fraud and ensure security. Legal basis: Art. 6(1)(a) GDPR (consent), collected through the Google User Messaging Platform (UMP) form and, on iOS, the App Tracking Transparency (ATT) prompt; Art. 5(3) ePrivacy Directive for access to information on the device. If you do not consent (or, on iOS, do not allow tracking), the App requests non-personalized ads only, and where the law requires it ads may not be shown at all.
• Correspondence with the Administrator - if you write to matcode.help@gmail.com, we process your e-mail address and message to reply; legal basis: Art. 6(1)(f) GDPR (legitimate interest - handling inquiries). We keep it until the matter is closed and then until limitation periods for claims expire.
• Website - the website (legal documents and app showcase) is hosted by OVH. The hosting provider may automatically log basic connection data (e.g. IP address, request time) in server logs for technical and security purposes. The site uses no analytics or advertising cookies; your browser stores only your language and theme preference (localStorage).

Providing data is voluntary. We do not make automated decisions about you or carry out profiling.

4. Data recipients

• Google LLC / Google Ireland Ltd. - Google AdMob, Google Mobile Ads SDK and Google User Messaging Platform (ads and consent management) and Google Play Games (achievements and cloud save on Android). For advertising, Google acts as an independent controller under its own privacy policy (how Google uses data in AdMob).
• Apple Inc. / Apple Distribution International Ltd. - Game Center and iCloud (achievements and cloud save on iOS), under Apple's privacy policy.
• Apple and Google (App Store, Google Play) - as providers of distribution platforms and operating systems, under their own policies.
• OVH - website hosting.
• The Administrator's IT and e-mail service providers - for handling correspondence.

These providers may process data in the USA or other countries outside the EEA. Transfers are based on an adequacy decision (including the EU-US Data Privacy Framework), Standard Contractual Clauses (SCC) or other safeguards provided for by the GDPR.

5. Retention period

• Local App data (progress, game in progress, settings) - until the App is uninstalled or its data is cleared by the User.
• Cloud save in Game Center / Google Play Games - until you delete it in the App's settings or through Apple's or Google's account tools.
• Achievements - kept by Apple or Google in your account under their policies.
• Data processed by Google in connection with ads - according to Google's policy; you can withdraw consent at any time (section 7).
• E-mail correspondence - until the matter is closed and limitation periods for claims expire.

6. User rights

To the extent the Administrator processes your data, you have the right of access, rectification, erasure, restriction of processing, data portability, the right to object (where the legal basis is legitimate interest) and the right to withdraw consent at any time (without affecting the lawfulness of processing carried out before withdrawal). Send requests to matcode.help@gmail.com. For data processed by Google or Apple (ads, Game Center, Google Play Games, iCloud) you can also exercise your rights directly with them. You also have the right to lodge a complaint with a supervisory authority, in Poland the President of the Personal Data Protection Office (UODO, ul. Stawki 2, 00-193 Warsaw), or with the authority in your own country.

Deleting data: local data is deleted by uninstalling the App or clearing its data in system settings. The cloud save is deleted with Settings → Game account and cloud → Delete cloud data in the App (this also turns syncing off). Achievements and your Game Center or Google Play Games profile are managed in Apple's or Google's account settings.

7. Device identifiers and managing consent

The App does not store classic browser "cookies", but the Google Mobile Ads SDK may use device or advertising identifiers. You can manage consent through:

• the Google consent form (UMP), shown where required in your region;
• on iOS: Settings → Privacy & Security → Tracking (you can change the permission for the App at any time);
• on Android: Settings → Google → Ads (reset or delete your advertising ID);
• Google ad personalization at adssettings.google.com.

8. Data security

We apply appropriate technical and organizational measures. Communication with Google and Apple services uses encrypted connections (TLS). Local data is stored in the operating system's app sandbox - its safety also depends on your device's protections (screen lock, system updates).

9. Children's privacy

The Service is not directed at children under 13 (or the minimum age required by local law to consent to data processing). We do not knowingly collect personal data from children below that age. If you are a parent or guardian and believe a child has given us personal data, contact us at matcode.help@gmail.com so we can take appropriate action.

10. Policy changes

We may update this Privacy Policy from time to time. The current version is available at https://matcode.eu/hub/watersort/policy-en.html. We will notify you of material changes in an appropriate way (e.g. in the App or release notes). The date at the top shows the last change.

11. Contact

For privacy and personal data matters write to matcode.help@gmail.com or to the Administrator's registered address given above.