Privacy Policy – Master G
Last updated: 24 October 2026
Master G ("the app") is a collection of brain, puzzle and board games published by Adarsh Kumar ("we", "us"). This policy explains what information the app uses and why. By using the app you agree to this policy.
1. Information we collect
- Local profile: the display name, country and language you choose, and an optional PIN (stored only as a salted hash) and fingerprint setting. These stay on your device.
- Game data: your progress, stars, scores, coins and settings. Stored on your device; if you sign in, a copy is saved to our cloud database so it can be restored.
- Brain Age: the age group you pick and your test results are stored only on your device. They are not sent to us.
- Account (optional sign-in): if you sign in with Google or email/password, we receive your name, email address and a user ID from Firebase Authentication.
- Leaderboards (signed-in players only): your display name, country and best scores are visible to other players.
- Online games (Chess, Ludo, Saanp-Seedhi; signed-in players only): the player name you choose, whether you are available to play and when you were last online, game requests, the moves of your online games and your win/loss count. Your player name, availability and record are visible to other signed-in players; your games are visible to the players in them. There is no chat.
- Purchases: if you buy an ad-free plan, Google Play processes the payment – we never see your card, UPI or bank details. We receive and store the purchase record (product, price, order ID and purchase token, date) together with your user ID, name, email and country, so we can give you the ad-free time, restore it on another phone and help with refunds.
- Advertising: the app shows ads through Unity Ads. Unity may collect device identifiers such as the Android Advertising ID, IP address, device and app information and ad interaction data to show, measure and limit ads and to prevent fraud. Players who bought or were given an ad-free plan see no ads.
- Usage counts: how often each game is opened and the star ratings players give games (counts only, not linked to your identity).
- Invites: if you open the app from an invite link, the Google Play Install Referrer tells us which player invited you so both of you can receive a coin bonus.
2. How we use information
- To run the games, save your progress and restore it on a new device.
- To run online games between players and show leaderboards (global and by country).
- To give rewards such as coins and invite bonuses, and to deliver and restore ad-free purchases.
- To show ads that keep the app free, and to send the optional daily reminder notification you can turn off in Settings.
- To understand which games are popular and improve the app.
We do not sell your personal information.
3. Third-party services
You can reset your Advertising ID or opt out of personalised ads in your phone's settings (Settings → Google → Ads, or Settings → Privacy → Ads).
4. Data security and storage
Data sent to our servers is encrypted in transit (HTTPS). Cloud data is stored by Google Firebase. Access rules make sure each player can read and change only their own saved data; purchase records can be read only by us.
5. Data retention and deletion
You can delete your account and all saved data at any time from Profile → Delete account in the app. You can also request deletion on the web: Delete your Master G account. Local data is removed when you uninstall the app. Purchase records are kept as long as needed for refunds, tax and legal reasons.
6. Children
The app is not directed to children under 13 and we do not knowingly collect personal information from them. If you believe a child has provided us information, contact us and we will delete it.
7. Changes
We may update this policy. The new version will be posted on this page with an updated date.
8. Contact
Adarsh Kumar, Gopalganj, Bihar, India
Email: aiforsmart@gmail.com