Privacy Policy

Last updated: 27 October 2026

This policy explains what the game Crowngrave ("the game", "we") collects about you, why, how long it is kept, and what you can do about it. The game is developed by Eugene Pecherskiy, who is the data controller. Contact: contactcrowngrave@gmail.com.

What we collect and why

• Your account. When you sign in with Google or with email and password, Firebase Authentication (Google) stores your email address, an account id and, for email accounts, a protected password. We use it to sign you in and to keep your progress safe across devices.
• Your game progress. Heroes, items, levels, gold, sapphires, achievements and the record of the battles you played are stored on your device and in our cloud database (Google Cloud Firestore). We use them to restore your progress, to keep purchases and rewards correct and to stop cheating.
• Purchases. Payments are handled by Google Play or the Apple App Store; we never see your card details. We receive a purchase receipt and keep a record of it (a fingerprint of the receipt, the package bought and the date) so a purchase is credited exactly once.
• Rewarded ads. Ads are shown by Google AdMob. AdMob may use your device's advertising identifier, IP address and device information to show ads and measure them; where the law requires it (for example in the EEA and the UK) you are asked for consent first, and you can choose non-personalised ads. When you watch an ad for sapphires, AdMob tells our server your account id so the reward reaches you; we keep a record of each rewarded ad to enforce the daily limit.
• Crash reports. Firebase Crashlytics (Google) collects crash reports with device model, system version, app version and an installation id, so we can fix bugs.
• Server logs. Our server (Google Cloud Run) keeps technical logs, which may include your account id, for 30 days.

The legal bases are the performance of our agreement with you (your account, progress and purchases), our legitimate interest in a fair, working game (anti-cheat, crash reports) and your consent where required (personalised ads).

Who processes it

Google (Firebase, Google Cloud, AdMob) processes this data for us. Our database and server are located in the European Union (Belgium, europe-west1). Google may process data in other countries under its standard contractual clauses. Google Play and the Apple App Store process your payments under their own privacy policies. We do not sell your data.

How long we keep it

• Your account and progress: until you delete your account.
• After you ask to delete your account: 30 days, during which you can sign in and restore it. Then the account, the progress and the rewarded-ad records are erased for good. You can also choose to have it all erased immediately, without the 30 days.
• Purchase records: kept without your account id after deletion, only to stop the same purchase being credited twice. The stores keep their own financial records.
• Server logs: 30 days. Crash reports: 90 days.

Your rights

You can ask for a copy of your data, ask us to correct it, object to its use, or have it deleted. You can delete your account in the game (Settings → Delete account) or on the web at the account deletion page, without installing the game. For anything else write to contactcrowngrave@gmail.com. If you are in the EEA or the UK you may also complain to your data protection authority.

Children

The game is not directed at children under 13 (under 16 in some EEA countries), and we do not knowingly collect their data. If you believe a child has created an account, contact us and we will delete it.

Changes

We will post changes to this policy on this page and update the date above.