1. Scope
This Privacy Policy applies to the Android application Master Chess Pro and to services used to operate its features. It explains what information may be processed, why it is processed, and which service providers may receive it.
2. Information we process
Depending on the features you use, the app may process the following categories of information:
Account and profile information
- Account identifiers and profile information needed to provide account-based features.
- App preferences, gameplay progress, achievements, settings and unlocked content.
Gameplay and app activity
- Game progress, chess-related activity, hint balances and feature usage.
- Diagnostic information used to improve stability and troubleshoot errors.
Purchase information
- Purchase status, product identifiers, subscription status and transaction-related identifiers.
- We do not directly receive or store your full payment card details. Payments are processed by Google Play.
Device, advertising and technical information
- Device and app information such as operating system version, app version and device characteristics.
- Advertising identifiers and ad-related technical data where permitted by your device settings and applicable law.
- IP address and network-related information may be processed by service providers as part of delivering their services.
3. How we use information
- To provide and maintain Master Chess Pro.
- To save gameplay progress and user preferences.
- To provide subscriptions, permanent avatar unlocks and consumable hint purchases.
- To restore eligible purchases.
- To prevent fraud, abuse and invalid purchase states.
- To display and measure advertising where applicable.
- To diagnose crashes, errors and performance problems.
- To comply with legal, accounting and platform requirements.
4. Third-party services
Master Chess Pro uses third-party services that may process information according to their own privacy policies and terms.
Google Play Services / Google Play Billing
Google Play is used to distribute the app and process in-app purchases and subscriptions. Google may process account, device, payment and transaction information for these purposes.
Google AdMob
AdMob may be used to serve, limit, personalize where permitted, and measure advertisements. Depending on user consent, device settings and region, Google may process advertising identifiers, device information, IP address and interaction data.
RevenueCat
RevenueCat is used to manage purchase status, subscriptions, entitlements and restoration of purchases. It may process app-user identifiers, product identifiers, transaction information and Google Play purchase tokens required to validate purchases.
Supabase
Supabase may be used for backend functionality, authentication, storage of app-related user data and server-side functions required by Master Chess Pro.
5. In-app purchases and subscriptions
Master Chess Pro offers recurring subscriptions and one-time purchases through Google Play. Purchase processing is handled by Google Play and purchase state is validated through RevenueCat.
- Monthly and yearly subscriptions may grant premium benefits such as ad-free access.
- Avatar purchases are non-consumable and are intended to remain unlocked permanently after a valid purchase.
- Hint packs are consumable and may be purchased repeatedly after use.
Refunds, billing disputes and payment-method handling are subject to Google Play's billing rules and account settings.
6. Advertising
The free experience may display advertising through Google AdMob. Ad serving can involve processing device and advertising information for ad delivery, fraud prevention, frequency capping, measurement and, where legally permitted and consented to, personalization.
Users may be able to control ad personalization through Google account settings, Android privacy settings and consent choices presented in the app where required.
7. Data retention
Information is retained only for as long as reasonably necessary to provide the app, maintain purchase and account functionality, comply with legal obligations, prevent fraud, resolve disputes and enforce agreements.
Retention periods may vary depending on the type of information and the service provider processing it.
8. Your choices and rights
Depending on your location, you may have rights to request access, correction or deletion of personal information.
- You may change certain privacy and advertising settings on your Android device and Google account.
- You may uninstall the app at any time.
- You may request deletion of eligible account-related data by contacting us at the email below.
9. Children
Master Chess Pro is not intended to knowingly collect personal information from children in violation of applicable law. If you believe a child has provided personal information improperly, contact us so we can review and take appropriate action.
10. Security
We use reasonable technical and organizational measures designed to protect information. However, no method of internet transmission or electronic storage can be guaranteed to be completely secure.
11. Changes to this Privacy Policy
We may update this Privacy Policy when features, service providers, legal requirements or data practices change. The effective date shown at the top of this page will be updated when a new version is published.
12. Contact
If you have questions about this Privacy Policy, privacy requests or data deletion requests, contact:
We aim to review legitimate privacy requests as soon as reasonably possible.