Privacy Policy for Sleep Calculator

Effective Date: 2026-01-27

Sleep Calculator ("we", "our", "us") respects your privacy. This privacy policy explains how we collect, use, and protect your information when you use our mobile application.

1. Information We Collect

• Personal information you provide (if any), such as bedtime and wake-up times.
• Non-personal information such as device type, operating system, and app usage.
• Sensor data:
  • Accelerometer (motion) data to detect sleep movement and cycles.
  • Microphone data (optional) to detect sleep sounds such as snoring.

2. How We Use Information

• To provide and improve the app functionality, including sleep tracking and sleep cycle calculations.
• To analyze app usage and troubleshoot errors.
• To provide personalized notifications for bedtime and wake-up alarms.
• To store and display your sleep history within the app.

3. Sensitive Permissions

• Activity Recognition: Used to detect movement during sleep so the app can track sleep cycles and provide personalized sleep recommendations.
• Microphone: Used to detect sleep sounds such as snoring. This feature is optional and only active when you allow it.

4. Sharing Information

We do not sell or share your personal information with third parties. All sensor and microphone data is stored locally on your device. Users can delete their sleep history at any time.

5. Data Security

We take reasonable measures to protect your information, including storing sleep data securely on your device.

6. User Rights

• You can view, modify, or delete your sleep data at any time.
• You can revoke microphone or motion permissions via your device settings.

7. Contact

For any questions about this privacy policy, contact us at: saffee.5217@gmail.com