Dooz — Privacy Policy
The short version. Dooz has no accounts, no sign-in, no advertising and no analytics. Your settings and your statistics stay on your device. The only data that leaves your device is an anonymous crash report if the app crashes (Android), and the purchase itself if you buy the unlock, which Google handles.
Who is responsible
Dooz is developed and published by Mirhashem Mousavi Mehmandousti, an individual developer based in Germany. For anything about this policy or your data, write to mirhashem.mousavi.m@gmail.com. The postal address is shown in the app's store listing.
Data that stays on your device
Dooz stores the following locally, in the app's own private storage, and never uploads it:
- your preferences — language, theme, board skin, board tilt, sound, and whether the board follows the opponent's move;
- the player name you chose for local play, if any;
- your results against the computer — wins, losses, draws, streaks and the last games per level, which drive the Statistics screen;
- whether the one-time unlock has been purchased, so the app works offline.
You can erase your statistics at any time from the Statistics screen. Uninstalling the app, or clearing its data in your device settings, deletes all of the above.
Crash reports (Android)
The Android version uses Firebase Crashlytics, a service by Google, to tell us when the app crashes. If Dooz crashes, Crashlytics sends Google a report containing:
- the crash's technical stack trace and the name of the screen that was open;
- your device model, operating system version and the app version;
- a randomly generated Firebase installation identifier, which is not linked to you, your Google account or any other app;
- the time of the crash and basic device state such as free memory.
Crash reports contain no name, e-mail address, game record or content you typed. We use them only to find and fix bugs, on the basis of our legitimate interest in keeping the app working (Art. 6(1)(f) GDPR). Google processes this data on our behalf and retains crash data for 90 days. See Google's Firebase privacy notice. Crash reporting is not present in the web version and not currently enabled in the iOS version.
Purchases
Dooz offers one optional one-time purchase, which unlocks the two harder computer levels and additional board skins. Payment is handled entirely by Google Play on Android (and by the App Store on iOS when available). We never see your card or bank details. The app receives from the store only a confirmation that the item was purchased, which it uses to unlock the content and to restore it if you reinstall. Refunds and receipts are managed by the store under its own terms. See Google's privacy policy.
Local two-player games (Bluetooth and Wi-Fi)
When you play someone nearby, the two phones talk to each other directly. No server is involved and nothing is sent to us. The other player's phone receives your chosen player name (or your device's name if you have not chosen one), the board size and your moves. Dooz uses the Bluetooth permissions only to find and connect to the other phone. On Android 11 and earlier the operating system additionally requires the location permission before any app may scan for Bluetooth devices; Dooz asks for it only for that scan and never reads, stores or sends your location. On Android 12 and later no location permission is involved. The connection ends when either player leaves the game.
The web version
The browser version at dooz-a7349.web.app is served by Firebase Hosting. Like any web server, it records standard access logs (your IP address, browser type and the time of the request), which Google keeps for a limited period for security and operation. The web version has no crash reporting, no purchases and no analytics, and stores your preferences only in your browser.
Online play
This version of Dooz has no online multiplayer, no accounts and no chat. If a future version adds them, this policy will be updated before those features are released, and the app will tell you what changes.
Children
Dooz is a board game suitable for all ages. It does not knowingly collect personal data from anyone, children included, beyond the anonymous crash reports described above.
Your rights
Under the GDPR you may ask what data we hold about you, have it corrected or deleted, object to its processing, or complain to a supervisory authority. In practice we hold nothing that identifies you: your game data is on your device under your control, and crash reports cannot be traced back to a person by us. If you still have a question or a request, write to the address above and we will answer within one month.
Changes to this policy
If the policy changes, the new version is published at this address with a new effective date.