ZenFast Privacy Policy

Effective date: 2026-05-15  ·  Developer: Oleksii Oleksiienko

1. What data ZenFast collects

ZenFast collects only data you explicitly enter inside the app:

• Fasting start/end times and selected protocol
• Workout intensity entries (none / light / heavy)
• Chronotype preference (Early Bird / Night Owl)
• Women's health flag (manually toggled in Settings)
• Premium purchase status (confirmed locally by Google Play Billing)

2. Health Connect (optional, premium)

If you grant permission, ZenFast reads the following data types from Android Health Connect:

• Body weight records
• Sleep session records
• Step count records

This data is used solely to display correlations on your History screen. It is never transmitted off your device. You can revoke access at any time through Android Settings → Privacy → Health Connect.

3. Where your data is stored

All data is stored locally on your device using Android Room (SQLite) and DataStore. ZenFast has no servers, no cloud sync, and no user accounts.

4. Data we do NOT collect

• No name, email, or contact information
• No location data
• No advertising identifiers
• No analytics or crash telemetry
• No data sold or shared with third parties

5. In-App Purchases

Purchases are processed entirely by Google Play. ZenFast only receives a boolean confirmation that the purchase was completed. No payment details are accessible to or stored by ZenFast.

6. Children

ZenFast is not directed at children under 13 and does not knowingly collect any personal data from minors.

7. Changes to this policy

Any updates will be reflected on this page with an updated effective date. The app's Play Store listing will link to the current version.

8. Contact

Questions? Email: o.oleksiienko@gmail.com