Gemhaven – Privacy Policy

Last updated: 6 November 2026 · App: Gemhaven (Android package com.thundersama.gemhaven)

Gemhaven is a match-3 puzzle game made by an independent developer, ThunderSama ("we"). This policy explains what information is handled when you play. Gemhaven does not ask you to create an account, and we never ask for your name, email address, contacts, photos or precise location.

1. Your game progress and cloud backup

Your progress (levels, stars, coins, gems, boosters, kingdom buildings and settings) is saved on your device. To back it up, the app signs you in anonymously with Google Firebase Authentication, which gives the app a random user ID that is not linked to your name or Google account, and stores a copy of your progress in Google Cloud Firestore under that ID. The backup is kept in Google's data centres in Europe.

2. Analytics and crash reports

We use Google Firebase Analytics to understand how the game is played (for example, which levels are started, won or lost, and which boosters are used) and Firebase Crashlytics to receive crash reports. These services process your Firebase installation ID, the app's usage events, device information (model, operating system version, language) and crash and performance data. Analytics also uses your device's advertising ID, but only if you allow personalized ads (see section 3); if you choose "No, keep ads general", it does not. We use this only to balance levels and fix problems.

3. Advertising

Gemhaven shows ads through Unity LevelPlay (Unity Technologies / ironSource), an ad mediation service that selects ads from ironSource Ads and Unity Ads. To show and measure ads, limit how often you see them and prevent fraud, these partners' software in the app may collect and process your device's advertising ID and other device identifiers, approximate location derived from your IP address, information about the ads you see and tap, and diagnostic data.

The first time you open the game, it asks whether our ad partners may use this data to personalise ads. If you choose "No, keep ads general", the app tells the ad partners not to personalise ads and not to sell or share your data. You can change your choice at any time in the game's shop. You can also reset or delete your advertising ID, or opt out of ads personalisation, in your device's Google settings. Each partner's use of data is described in its own policy: Unity (LevelPlay, ironSource Ads, Unity Ads).

4. In-app purchases

Purchases of gems, bundles or Remove Ads are processed entirely by Google Play. We never receive your payment card or billing details. The app receives only a purchase confirmation so it can deliver the item, and remembers which orders it has already delivered.

5. Who we share data with

We do not sell your personal information for money. Information is processed only by the service providers named above: Google (Firebase and Google Play) and Unity (LevelPlay, ironSource Ads, Unity Ads).

6. Children

Gemhaven is intended for a general audience aged 13 and over and is not directed at children under 13. We do not knowingly collect personal information from children. If you believe a child has provided information, contact us and we will delete it.

7. Retention and deletion

Your cloud backup is kept until you ask us to delete it. Uninstalling the app or clearing its data removes the copy on your device. To delete your cloud backup, email us and tell us roughly when you started playing and how far you have got, so we can find it. Analytics data and crash reports are kept according to Firebase's retention settings, and ad partners keep data according to their own policies.

8. Security

All data the app sends is encrypted in transit. Each player's cloud backup can only be read or written by that player's own anonymous ID.

9. Your rights

Depending on where you live, you may have rights to access, correct or delete your personal data, or to object to or restrict its processing. Contact us and we will help; requests about ad data can also be made directly to Unity.

10. Changes

We may update this policy. The "Last updated" date above shows the latest version.

11. Contact

Email: gemhavengame@gmail.com