Legal
Privacy Policy
Effective date: April 12, 2026
Hatian (“we,” “us,” or “our”) provides a mobile application for splitting expenses with friends and groups. This Privacy Policy explains what information we collect, how we use it, and what choices you have.
1. Information We Collect
Account information
When you create an account, we collect your name, email address, and profile photo (if you choose to provide one). If you sign in through Apple or Google, we receive only the information you authorize those services to share.
Expense & financial data
Hatian lets you log expenses, split bills, and track balances. The amounts, descriptions, and group details you enter are stored in your private database hosted on Supabase (our infrastructure provider) and synchronized to your device. We do not sell, share, or use your financial data for advertising.
Receipt images
If you use the receipt-scanning feature, images are processed to extract item names and amounts. Receipt images are not stored on our servers after processing is complete.
Usage data
We collect anonymous, aggregated usage data (e.g., which features are used most) to improve the app. This data cannot be used to identify you personally.
2. How We Use Your Information
- To provide and maintain the Hatian service
- To sync your expense data across your devices and with group members you choose to share with
- To process receipts for automatic bill-splitting
- To send payment reminders you have opted into
- To improve app performance and fix bugs
We do not use your data for targeted advertising, profiling, or sale to third parties.
3. Data Storage & Security
Your expense data is stored in a secure Supabase database with row-level security enabled. Data is encrypted in transit (TLS) and at rest. Only you and the group members you explicitly invite can access your shared expenses.
Certain data (such as cached expense amounts) may also reside on-device for offline access. This data never leaves your device except to sync with our database.
4. Third-Party Services
We use the following third-party services to operate Hatian:
- Supabase — database hosting, authentication, and file storage
- Apple Sign In / Google Sign In — optional authentication providers
Each of these services has its own privacy policy governing how they handle data. We encourage you to review them.
5. Your Rights
You can, at any time:
- Access your data through the app
- Export your expense history
- Delete your account and all associated data by contacting us or using the in-app option
Upon account deletion, all your personal data and expense records are permanently removed from our systems within 30 days.
6. Children's Privacy
Hatian is not intended for children under the age of 13. We do not knowingly collect personal information from children. If you believe a child has provided us with personal data, please contact us so we can remove it.
7. Changes to This Policy
We may update this Privacy Policy from time to time. If we make significant changes, we will notify you through the app or by email. Continued use of Hatian after changes constitutes acceptance of the updated policy.
8. Contact Us
If you have questions about this Privacy Policy or your data, reach out at privacy@hatian.app.