Privacy Policy

1. Overview

This Privacy Policy explains how Number Trail ("the App", "we", "us", or "our"), developed by ProgrammerCrow, handles information when you use our mobile application on iOS and Android. Our application is designed with a strict offline-first, privacy-respecting architecture.

2. Information We Do NOT Collect

We do not require account registration, and we do not collect or store any of the following:

• No Personal Identification: We never ask for your name, email address, physical address, or phone number.
• No Location Tracking: We never access GPS or fine location data.
• No Device Sensors or Media: We do not access your microphone, camera, photo library, or address book.
• No First-Party Analytics or Profiles: We do not operate any backend user database or cloud profiling servers.

3. Data Stored Locally on Your Device

Number Trail stores gameplay data directly and locally on your device using secure platform storage (SharedPreferences / NSUserDefaults). This data includes:

• Completed levels, stars earned, active puzzle boards, and sprint personal bests
• Daily puzzle results, daily streaks, and weekly journey progress
• Energy balance and regeneration timestamps
• Local user preferences (language choice, sound effects, haptic feedback, selected theme and board style, and local reminder time)

This information stays entirely on your device and can be reset at any time from the in-app Settings screen, or removed by uninstalling the app.

4. Third-Party Services & Advertising

To support free development and keep Number Trail accessible to everyone, our app uses Google AdMob (Google Mobile Ads SDK) to display advertisements (such as optional rewarded ads for extra hints or energy, and occasional interstitial ads between level stages). Google AdMob may collect and process technical data according to your consent and platform settings:

• Device identifiers (such as Advertising ID / IDFA where permitted) and coarse IP-based region
• Ad performance metrics, ad interactions, and diagnostic crash/load information

Where required by law, a consent form is presented and you can revisit your ad privacy choices from the in-app Settings screen. For more details on how Google processes data, please review How Google uses information from sites or apps that use our services.

5. Local Notifications & Sharing

• Daily Reminders: Optional daily reminders are scheduled locally on your device only if you enable them and grant notification permission.
• Sharing & Friend Codes: Result cards and puzzle codes (NT1-...) are shared only when initiated by you via your device's native share sheet or clipboard.

6. Children's Privacy

Number Trail is a logic and number puzzle suitable for general audiences (4+). We do not knowingly collect personal identifiable information from children under 13. If you have any questions or concerns, please contact us using the details below.

7. Contact Us

If you have any questions, feedback, or inquiries regarding this Privacy Policy, please reach out to us:

• Developer: Egemen Türkmen
• Project: Number Trail
• Support & Inquiries: support@programmercrow.com
• GitHub: github.com/ProgrammerCrow/NumberTrail