Privacy Policy
DoomMath - Beat phone addiction with math puzzles
Last Updated: October 16, 2025
TL;DR: DoomMath respects your privacy. We don't collect, store, or sell your personal data. All puzzle activity and settings stay on your device. We only use Apple's built-in services for app functionality and in-app purchases.
1. Introduction
Welcome to DoomMath! This Privacy Policy explains how we handle your information when you use our mobile application. We are committed to protecting your privacy and being transparent about our practices.
By using DoomMath, you agree to this Privacy Policy. If you don't agree, please don't use the app.
2. Information We Do NOT Collect
DoomMath is designed with privacy in mind. We do NOT collect, store, or process:
- Personal identification information (name, email, phone number)
- Location data
- Contact information
- Photos or camera access
- Microphone or audio data
- Social media information
- Browsing history or web data
3. Data Stored Locally on Your Device
The following information is stored only on your device and never leaves it:
- Puzzle Statistics: Number of puzzles solved, accuracy, streaks
- App Settings: Your preferences for difficulty levels, categories, and app behavior
- Screen Time Integration: App and website blocking configurations (managed by iOS ScreenTime API)
This data remains on your device and is not transmitted to our servers or any third parties.
4. Apple Services We Use
DoomMath integrates with the following Apple-provided services:
4.1 Screen Time API (FamilyControls & ManagedSettings)
- Used to block apps and websites when you enable focus mode
- All blocking happens locally on your device via iOS
- No data is sent to us or Apple beyond standard iOS functionality
- You control which apps and sites to block
4.2 StoreKit (In-App Purchases)
- Used to process premium subscriptions
- All payment information is handled securely by Apple
- We never see or store your payment details
- Apple's privacy policy applies to purchase data
4.3 Superwall (Paywall Management)
- Third-party service for managing subscription paywalls
- May collect anonymous usage analytics for paywall optimization
- Subject to Superwall's privacy policy: superwall.com/privacy
5. Third-Party Services
DoomMath may connect to our backend server for:
- Puzzle Generation: Fetching new math puzzles (no personal data sent)
- Anonymous Analytics: Basic app usage statistics (device type, iOS version) to improve the app
These connections don't include any personally identifiable information.
6. Children's Privacy
DoomMath is suitable for users of all ages. We do not knowingly collect any personal information from children under 13. Since we don't collect personal data from anyone, this applies to all users regardless of age.
7. Data Security
Since all your data stays on your device:
- Your data is protected by your device's security (passcode, Face ID, Touch ID)
- Data is backed up through iCloud if you have iCloud Backup enabled (controlled by your iOS settings)
- We cannot access your data as it's not transmitted to our servers
8. Your Rights
You have complete control over your data:
- Access: All your data is visible in the app settings
- Delete: Uninstalling the app removes all local data
- Export: Currently not supported since data is minimal and local-only
- Disable Features: You can turn off Screen Time integration at any time
9. Changes to This Privacy Policy
We may update this Privacy Policy from time to time. When we do:
- The "Last Updated" date at the top will change
- We'll notify you through the app if changes are significant
- Continued use of the app means you accept the updated policy
10. Contact Us
If you have questions about this Privacy Policy or DoomMath's privacy practices, please contact us:
11. Legal Basis (GDPR Compliance)
For users in the European Union:
- We process minimal data based on legitimate interest (app functionality)
- Screen Time blocking is based on your consent (you choose to enable it)
- In-app purchases are based on contract (when you choose to subscribe)
- You can withdraw consent or delete data by uninstalling the app
🔒 Our Privacy Commitment
DoomMath is built with a "privacy-first" philosophy. We believe you should have full control over your data. That's why we've designed the app to work entirely on your device, with no accounts, no tracking, and no data collection beyond what's necessary for the app to function.