Legal
Privacy Policy
Last updated: June 2026
Short version: ZenRead is designed to keep your data on your device. The free tier sends nothing to any server. Pro features require a Google account and are billed through Google Play, and we store only what's needed to run those features. We don't sell your data, run ads, or track your reading habits.
Free Tier
If you use ZenRead without subscribing to Pro, no data leaves your device. Your books, quotes, notes, and name are stored in local SQLite on your phone. No account is created. No analytics are collected. The app works entirely offline.
The only network requests made by the free tier are:
- Fetching book cover images from a public book metadata service (by title and author)
- Checking your internet connection to display the offline indicator
Neither request includes any personal information or account identifiers.
Pro Tier
Pro features (cross-device sync and backup) require a Google account and a paid subscription. When you subscribe, we collect and store:
- Google ID and email address, used to identify your account
- Subscription status and a purchase identifier, used to verify your plan
- Your library (books and quotes), stored on our server to enable sync across devices
We do not store or process payment card details. All payments are handled by Google Play through Google's billing system. We use RevenueCat to manage and verify subscriptions; it processes a purchase token and an app-specific account identifier solely to confirm your Pro entitlement.
Data Storage
Pro library data is stored on a private server. Auth tokens are stored in your device's encrypted keychain (Expo SecureStore), not in plain storage.
We do not use third-party analytics, advertising SDKs, or crash reporting tools that collect personal information.
Data Deletion
You can delete your account at any time from Settings → Account → Delete account. This permanently removes your Google ID, email, subscription record, and all synced library data from our server. Your local on-device data is not affected.
To delete only your local data, use Settings → Data → Clear all data.
Third-Party Services
- Google Play Billing for subscription payments
- RevenueCat for subscription management and receipt validation
- Google Sign-In for authentication (Pro only)
- Public book metadata APIs for book cover images and ISBN metadata
Children
ZenRead is not directed at children under 13. We do not knowingly collect personal information from children.
Changes
If we make material changes to this policy, we'll update the date at the top of this page. Continued use of the app after changes constitutes acceptance.
Contact
Questions or concerns? Reach our support team at zenread-support@protonmail.com.