Privacy Policy

Effective date: February 17, 2026

Biblingual ("we", "our", "us") is a Bible study app that helps you read scripture in multiple languages. This policy explains what data we collect, how we use it, and your rights.

1. Information We Collect

Account data. When you sign up we store your email address and a unique user ID via Supabase Auth, with a reference in our database.

Learning data. Sessions, vocabulary, reviews, and streaks are stored locally on your device using MMKV and are not sent to our servers.

Usage data. We collect anonymous screen-view events and associate them with your user ID through Firebase Analytics. Crash logs and stack traces are collected through Firebase Crashlytics.

Subscription data. Purchase status and expiration dates are stored in our database and synced with RevenueCat for subscription management.

Device data. If you enable push notifications, your push token is stored by Expo Notifications.

2. How We Use Your Information

• Provide and improve the Bible study experience
• Manage your subscription and restore purchases
• Monitor app stability and fix crashes
• Send push notifications you have opted into
• Generate text-to-speech audio for verses (verse text is sent transiently to our TTS provider and is not stored)
• Generate word-level alignments between translations (verse text is processed and cached to improve load times)

3. Third-Party Services

We use the following third-party services that may process your data under their own privacy policies:

• Supabase — authentication and database
• Firebase — analytics and crash reporting
• RevenueCat — subscription management
• Cloudflare — hosting and request infrastructure

4. Data Storage & Security

Learning data stays on your device. Account, subscription, and alignment data are stored in Cloudflare. All API requests are authenticated with JWT tokens and served over HTTPS.

5. Your Rights

• Delete your account. You can delete your account and all associated server-side data from within the app.
• Opt out of analytics. You can disable analytics collection in your device settings by limiting ad tracking.

6. Children's Privacy

Biblingual is not directed at children under 13. We do not knowingly collect data from children under 13. If we discover that we have, we will delete it promptly.

7. Changes to This Policy

We may update this policy from time to time. The effective date at the top of this page indicates when the latest changes took effect. Continued use of the app after changes constitutes acceptance.

8. Contact Us

If you have questions about this privacy policy, contact us at elliotekj+biblingual@gmail.com.