Privacy Policy

1. Information We Do Not Collect

SleepFlow does not require registration, sign-in, or account creation. When using our application or website, we do not collect or request:

• Your name, email address, phone number, or physical address.
• Your device identifiers (such as IMEI, Android ID, or MAC address).
• Your precise or approximate geographic location.
• Your contacts, photos, camera, or microphone data.
• Analytics tracking your individual sleep habits or session duration.

2. Local Device Storage (Preferences)

SleepFlow stores small configuration preferences locally on your device using Android SharedPreferences (or browser localStorage). These include:

• Auto Screen Dim: Whether the display should automatically dim during active relaxation exercises.
• Reduced Motion: Whether animations should run at slower, simplified velocities for visual comfort.
• Session Sleep Timer: Your selected duration (Off, 5, 10, 15, or 20 minutes).
• Pro Unlock Status: A local cached token indicating active subscription or lifetime purchase status.

This data never leaves your device and is not shared with any third-party server.

3. Google Play In-App Billing

SleepFlow offers optional Pro upgrade plans (Monthly, Yearly, and Lifetime) processed exclusively through Google Play In-App Billing (using Google Play Billing Library v8+).

All transaction and payment data are handled directly and securely by Google LLC under the Google Privacy Policy. SleepFlow does not receive, process, or store your payment card numbers, bank account details, or billing address.

4. Application Permissions

The Android application requests only the following single permission:

• com.android.vending.BILLING: Required strictly to communicate with the Google Play Store service for validating Pro purchases and subscriptions.

No internet permission, camera, microphone, or storage permissions are declared or requested by SleepFlow.

5. Children’s Privacy

SleepFlow does not knowingly collect any personally identifiable information from children under the age of 13 (or under the applicable age in your jurisdiction). The app is suitable for general audiences seeking relaxing mindfulness and sleep focus exercises.

6. Third-Party Services & Advertising

SleepFlow does not integrate third-party advertising SDKs (such as AdMob), analytics trackers, or social network tracking pixels. There are zero advertisements within the application.

7. Changes to This Privacy Policy

We may update this Privacy Policy from time to time. Any changes will be posted on this page with an updated revision date.

8. Contact Us

If you have any questions or concerns regarding this Privacy Policy or SleepFlow, please contact us via our developer channel:

support@sleepflow.app