Privacy policy

Last updated: October 12, 2026

Contact

For any question about this policy or your data: contact@zenith-ai.dev.

Your progress

Scores, levels, tesserae, themes, challenges and settings are stored only on your device. We have no server that receives them. Uninstalling the app erases them.

Crash reports

If the app crashes, it sends a technical report through Firebase Crashlytics (Google) so that we can fix the problem. It contains: the device model and operating system, the app version, the technical trace of the error and a random installation identifier. It contains neither your name, nor your email, nor your precise location.

Legal basis: our legitimate interest in providing an app that works.

Usage statistics — with your consent

On first launch, the app asks whether you agree to share usage statistics. Refusing is as easy as accepting, and nothing is sent before you answer. You can change your mind at any time in Settings → Usage statistics; if you withdraw your consent, the data already collected on your device is erased.

If you agree, Google Analytics for Firebase receives game events (games played, levels reached, challenges claimed, tesserae earned and spent, screens viewed), the device model and operating system, the language, an approximate country and a random instance identifier. These statistics do not collect the device advertising identifier and are never used for advertising.

Legal basis: your consent. Event data is kept for at most 14 months.

Ads

The game is free and funded by ads, through Google AdMob. There is never a banner nor an ad during a game: you may choose to watch a video for a second chance or to double your tesserae, and a full-screen ad may appear now and then between two games.

To show these ads, Google AdMob receives technical information about the device (model, operating system, language, IP address, approximate country), the device advertising identifier (Android) or an app-specific identifier (iOS), and ad interaction data. Google acts as an independent controller for this; see how Google uses data from partner apps.

In the European Economic Area, the United Kingdom and Switzerland, a consent message appears before any ad: you can accept, refuse or choose in detail. If you refuse, only non-personalised ads are shown. You can review your choice at any time in Settings → Ad choices. You can also reset or turn off the advertising identifier in your phone settings. Ads are limited to general-audience content.

Legal basis: your consent for personalised ads; our legitimate interest in funding the game for non-personalised ads.

Daily reminder

If you turn on the daily reminder, it is a local notification scheduled on your device. No data is sent for it.

Sharing your mosaic

The “Share my mosaic” button creates an image of your board and opens your phone's share menu. You choose the app and the recipient; we receive nothing.

Processor and transfers

Crashlytics and Google Analytics for Firebase are provided by Google, acting as a processor (for AdMob, see the Ads section). Data may be processed outside the European Union, notably in the United States, under the safeguards provided by the GDPR (standard contractual clauses, Data Privacy Framework). See the Firebase privacy policy.

Your rights

You have the rights of access, rectification, erasure, objection and restriction, and the right to withdraw your consent at any time. Write to us at contact@zenith-ai.dev. You can also lodge a complaint with your data protection authority (in France, the CNIL: cnil.fr).

Changes

If this policy changes, the date at the top is updated. Any new data collection will be announced in the app before it happens.