Privacy Policy for Sleep Calculator App

 Privacy Policy for Sleep Calculator App

Effective Date: May 19, 2026

Last Updated: May 19, 2026

1. Introduction

Welcome to Sleep Calculator App (the "App"). This Privacy Policy explains how we handle your information when you use our sleep calculator and bedtime planner app.

Your privacy is important to us. This app is designed to collect NO personal data.

2. Information We Collect

We do NOT collect any personal information from you.

All calculations (bedtime, wake-up time, sleep cycles) happen entirely on your device. We do not store or have access to any sleep data you enter.

Types of data we do NOT collect:

- Name, email address, phone number, or location

- Device identifiers (e.g., IMEI, MAC address, Android ID)

- Your sleep times, wake-up times, or calculation history

- Usage statistics or crash logs

- Contacts, files, photos, or calendar

3. Permissions Used

Our sleep calculator app requires NO special permissions.

The app does not access your camera, microphone, storage, contacts, location, or any other sensitive data. It simply performs sleep cycle calculations on your device.

4. How the App Works

The Sleep Calculator helps you determine:

- Best bedtime based on your desired wake-up time

- Best wake-up time based on when you go to bed

- Sleep cycle recommendations (90-minute cycles)

All calculations are based on standard sleep cycle science (approximately 90 minutes per cycle). The app does not track your actual sleep, does not use your phone's sensors, and does not store any calculation history permanently.

5. Data Storage & Security

All calculations happen offline on your device.

No data is transmitted to any server.

Since we collect no data, there is no risk of your data being lost, leaked, or misused from our side.

The app does not save your sleep history permanently. Any calculation you perform exists only temporarily on your screen.

6. Third-Party Services (Ads / Analytics)

This app does NOT use any third-party analytics, crash reporting, or advertising services by default.

If we ever add advertisements (e.g., Google AdMob) in a future update, that service may collect:

- Ad ID (resettable by user)

- IP address (for ad targeting, if you consent)

Any such addition will be clearly disclosed in an updated privacy policy, and you will see a consent request inside the app.

Currently: No third-party SDKs are used.

7. Children's Privacy

Our app is safe for children (all ages). We do not knowingly collect any personal information from children under 13. Because we collect nothing, no parental consent is required.

8. Important Disclaimer

This app provides general sleep cycle recommendations based on standard scientific guidelines. It is not a medical device or substitute for professional medical advice. Always consult a healthcare provider for sleep-related concerns.

9. Changes to This Privacy Policy

If we update this policy, we will post the new version here and update the "Last Updated" date.

Changes are effective immediately upon posting.

10. Contact Us

If you have questions about this Privacy Policy, you can contact us at:

Email: nizamkhan45170492@gmail.com

We will respond within 48 hours.