Privacy Policy - Bonjournal

1. Who we are

Bonjournal is operated by Tom Keysers ("we", "us", "our"). We provide an AI-powered language learning journaling service at bonjournal.app. If you have questions about this policy, contact us at hello@bonjournal.app.

2. What data we collect

We collect the following information when you use Bonjournal:

Account information: Your email address, first name, and language preferences when you create an account.
Journal entries: The text you write in your journal entries and the AI-generated corrections, coaching feedback, and progress scores associated with them.
Payment information: If you subscribe to a paid plan, your payment details are processed directly by Stripe. We do not store your credit card number.
Usage data: Basic information about how you use the service, such as entry counts and submission timestamps.
Guest submissions: If you try the service without an account, we temporarily store your submitted text and the generated analysis.

3. How we use your data

To provide the core service: analyzing your journal entries using AI and returning corrections and feedback.
To track your progress over time (grammar, vocabulary, and fluency scores).
To send you optional daily writing reminders via email (you can disable these in Settings).
To process your subscription payments via Stripe.
To monitor and fix errors in the service (via Sentry error tracking).

4. How we protect your data

Your journal entries and analysis data are encrypted at rest using AES-256-GCM encryption. This means that even in the unlikely event of a database breach, your personal writing cannot be read without the encryption key. Your data is stored on servers managed by Supabase, which provides enterprise-grade security and access controls.

5. Third-party services

We use the following third-party services to operate Bonjournal:

Supabase — Authentication and database hosting.
Stripe — Payment processing for subscriptions.
AI providers (Anthropic, OpenAI, Google, Mistral) — To analyze your journal entries and generate corrections and feedback. Your entry text is sent to these providers for processing but is not used to train their models.
Resend — To send transactional and reminder emails.
Sentry — Error monitoring to help us fix bugs. No personal content is sent to Sentry.

6. Cookies

Bonjournal uses only essential cookies required for authentication (keeping you logged in). We do not use tracking cookies, advertising cookies, or any third-party analytics cookies.

7. Data retention and deletion

Your journal entries and account data are retained for as long as you maintain an active account. Guest submissions and their analysis results are automatically deleted within 24 hours. You can delete your account and all associated data at any time from your Account Settings page. Alternatively, contact us at hello@bonjournal.app and we will process your request promptly.

8. Your rights

You have the right to access, correct, or delete your personal data. You can update your name, language preferences, and notification settings directly in your account Settings. You can delete your account directly from your Account Settings. For data export requests, contact us at hello@bonjournal.app.

9. Changes to this policy

We may update this Privacy Policy from time to time. If we make significant changes, we will notify you via email or through a notice on the service. Your continued use of Bonjournal after changes are posted constitutes your acceptance of the updated policy.

10. Contact

If you have any questions about this Privacy Policy or how we handle your data, please contact us at hello@bonjournal.app.