Privacy policy
Last updated: September 18, 2026
In short: Mosaïque Blast asks for no account, no email and no phone number, and contains no ads. Your progress is stored on your device. Two things can leave it: technical crash reports and — only if you agree — usage statistics. Never your name or email, which we don't know.
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. The device advertising identifier is never collected and no data is used for advertising.
Legal basis: your consent. Event data is kept for at most 14 months.
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. 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.