Privacy Policy - Roulette Stat Master

Effective date: 12 May 2026 | Last updated: 2 June 2026

1. Who We Are

Roulette Stat Master ("the App", "we", "us", or "our") is published by Manav Arora. The package name is com.airoulette.predictor.

2. What This App Is - And Is Not

This App is:

• An offline-first educational statistics tool
• A roulette outcome tracker and signal-analysis application
• A software product with optional subscription-based premium features

This App is not:

• A gambling app or real-money gaming service
• A betting, wagering, staking, lottery, or tournament platform
• A deposit, payout, or wallet for gaming funds
• A service that guarantees winning outcomes or financial results

The App does not accept deposits, place bets, hold balances, process gaming payouts, or direct users to real-money gambling services. The only financial transaction in the App is the optional Premium subscription processed by Google Play Billing.

3. Information We Collect

3.1 Data stored locally on your device

• Spin-by-spin session data that you enter
• Saved sessions and session history
• App preferences such as theme, language, prediction mode, and walkthrough state
• Optional OpenAI or Google Gemini API key, stored encrypted, only if you enable External AI

This data stays on your device unless you explicitly export it using an in-app share/export action.

3.2 Firebase data used for app operation and quality

• Crashlytics: crash stack traces, app version, device model, and OS version when the App crashes.
• Analytics: anonymous aggregate screen-view and feature-use events.
• App Check: Play Integrity or DeviceCheck attestation tokens used to protect backend calls.

3.3 Free-limit and subscription verification data

To enforce the daily free-prediction limit and reduce uninstall/reinstall abuse, the App sends the following over HTTPS to our Firebase Cloud Functions:

• A per-app device identifier namespace derived from Android ID, iOS vendor ID, or a device fallback. It is stored only as a one-way SHA-256 hash in Firebase Realtime Database.
• Your current free-prediction count for the day.
• Your UTC offset and current device timestamp, used to detect obvious clock manipulation.

For subscriptions, Google Play purchase tokens and product IDs may be sent to our backend for verification with Google Play. We do not receive your payment card details, billing address, Google account password, or full Google account profile.

3.4 Data we do not collect

• No name, email, phone number, address, contacts, location, camera, microphone, SMS, call logs, browsing history, biometric data, health data, or advertising ID.
• No real-money gambling history. The App does not gamble, wager, or pay out.
• No third-party advertising or tracking SDKs.

4. Permissions

• Internet: used for Google Play subscription verification, Firebase App Check/Crashlytics/Analytics/free-limit enforcement, optional External AI requests, and opening support/privacy/store links.
• Billing: used by Google Play Billing for Premium subscriptions.

5. External AI Mode

External AI is optional and off by default. If you enable it, you select OpenAI or Google Gemini and provide your own API key.

• Before saving or testing an API key, the App displays an in-app disclosure and requires affirmative checkbox consent.
• Your API key is stored encrypted on your device and is never sent to our servers.
• A spin-summary request may be sent directly from your device to the selected provider. The summary can include recent entered roulette numbers and aggregate signal context.
• No personal information, device identifier, or payment details are included in External AI requests.
• Disabling External AI clears the stored key and cached External AI predictions.

Provider policies:

• OpenAI Privacy Policy
• Google Privacy Policy

6. How We Use Information

• To operate the App and store your settings locally.
• To verify Premium subscriptions through Google Play.
• To enforce the daily free-prediction limit and prevent abuse.
• To diagnose crashes and improve stability.
• To protect backend services with Firebase App Check.
• To comply with legal obligations.

We do not sell personal or sensitive user data.

7. Third-Party Services

• Google Play Billing: subscription processing and purchase verification.
• Google Firebase: Crashlytics, Analytics, App Check, Cloud Functions, and Realtime Database.
• OpenAI: only if you voluntarily enable External AI with an OpenAI key.
• Google Gemini API: only if you voluntarily enable External AI with a Gemini key.

8. Data Security

• Network communication uses HTTPS/TLS.
• Optional API keys are stored with Android Keystore or iOS Keychain.
• Backend calls require Firebase App Check.
• The free-limit identifier is stored only as a one-way SHA-256 hash.
• The App does not require user accounts or passwords.

9. Data Retention And Deletion

• Local data remains until you delete sessions, clear app data, or uninstall the App.
• Crashlytics and Analytics data are retained under Google's standard Firebase retention settings.
• The hashed free-limit record remains until deletion is requested.
• Google Play subscription records are handled by Google Play.

See the Data Deletion page for deletion instructions.

10. Children's Privacy

The App is intended for users 18 years and older. We do not knowingly collect personal information from anyone under 18.

11. Legal And No-Gambling Disclaimer

Roulette Stat Master is a statistical study and entertainment tool only. It does not facilitate real-money gambling. Signals and statistics are not guarantees and should not be treated as financial or gambling advice.

12. Changes To This Policy

We may update this Privacy Policy from time to time. The updated version will appear here with a new "Last updated" date.