Summary
Your privacy is our priority. All your data stays on your device. We don't collect, store, or transmit any personal information to our servers.
We use Firebase Analytics to understand how the app is used (anonymous usage statistics only). You can opt out in your device settings.
Data We Store Locally
The following data is stored only on your device and never leaves it:
- Simulation Settings: Your lottery preferences (lottery type, weekly budget, lifetime count) - used to remember your choices between sessions
- Simulation History: Past simulation results and statistics - used to show your progress over time
- Favorite Lotteries: Your bookmarked lottery types - used to personalize the lottery selection
- Language Preference: Your selected app language - used to display the app in your preferred language
- App Ratings: Whether you've rated the app and when - used to avoid repeatedly asking for ratings
Data Storage
All data is stored locally on your device using:
- SharedPreferences: For app settings, language preferences, and favorite lotteries
- Hive (Local Database): For simulation history and rating preferences
No data is transmitted to remote servers except anonymous analytics events (see Third-Party Services below).
Data We Don't Collect
We do NOT collect, store, or have access to:
- Personal information (name, email, phone number)
- Location data
- Financial information
- Device identifiers (IMEI, MAC address)
- Contacts or photos
- Real lottery purchases or gambling activity
Data Deletion
To delete all your local data:
- Go to your device Settings
- Find Apps → Lottery Lifetime Simulator
- Tap "Clear Data" or "Clear Storage"
Or simply uninstall the app - all data will be permanently removed.
For the web version, clear your browser data for this site.
Third-Party Services
Firebase Analytics (Google)
We use Firebase Analytics to collect anonymous usage statistics:
- What we track: Screen views, simulation starts/completions, feature usage (e.g., which lottery types are popular)
- What we DON'T track: Personal information, device IDs, or precise location
- Purpose: To understand how users interact with the app and improve features
- Advertising ID: We've disabled advertising ID collection - the app does not collect or use advertising identifiers
Firebase Analytics privacy: firebase.google.com/support/privacy
Firebase Hosting (Google)
The web version of this app is hosted on Firebase Hosting. Google may collect standard web server logs (IP addresses, browser type) for infrastructure purposes. See Google's privacy policy: policies.google.com/privacy
Firebase Crashlytics (Google)
On the Android app only, we use Firebase Crashlytics to collect anonymous crash and diagnostic data - stack traces, device model, OS version, and app state at the moment of a crash - so we can find and fix stability issues. No personal information is included, and Crashlytics is not used on the web version. Firebase Crashlytics privacy: firebase.google.com/support/privacy
Policy Changes
If we update this privacy policy, we will:
- Update the "Last Updated" date at the top
- Notify users through an in-app message (for significant changes)
We recommend checking this page periodically for updates.
Contact Us
If you have questions or concerns about this privacy policy: