Privacy Policy for Bifrost

Last Updated: June 12, 2026

Bifrost is an AI-powered character chat app for language practice and daily conversation. This Privacy Policy explains what information is processed when you use the app, how it is used, and what choices you have.

1. Information We Process

1.1 No Account Required

Bifrost does not require account registration. We do not ask for an email address, password, username, or social sign-in to use the app.

The app creates a random local device identifier and stores it on your device. This identifier is sent to Bifrost's chat service only to enforce the free message allowance and subscription access. It is not your name, email address, advertising identifier, or Apple ID.

1.2 Content You Create in the App

Bifrost stores the following app data locally on your device:

• Characters you create, including personality, gender, language, and name choices
• Conversations, messages, reactions, and timestamps
• Character relationship progress, memories, achievements, streaks, and preferences
• App settings, including theme and notification choices

Your chat history and companion state are stored on your device. If you delete the app or clear local app data, that local data may be removed from the device.

1.3 AI Message Processing

When you send a message to receive an AI reply, Bifrost sends the message and a limited amount of recent conversation context to Bifrost's Cloudflare Worker. The Worker forwards the request to Anthropic Claude so a character response can be generated and streamed back to the app.

We use this processing to provide the core chat feature. Your device never receives or stores our Anthropic API key.

1.4 Purchase Information

Subscriptions are handled by Apple's in-app purchase system. Bifrost may send Apple-signed subscription entitlement information to Bifrost's chat service to confirm premium access. We do not receive your full payment card details.

1.5 Notifications

Bifrost may ask permission to send notifications. The current app uses your notification choice to provide app-related reminders or companion prompts. You can change notification permissions in iOS Settings.

2. How We Use Information

• Generate AI character responses
• Keep your local characters, conversations, memories, streaks, and achievements working
• Enforce free message limits and premium access
• Provide subscriptions through Apple's in-app purchase system
• Maintain app security, prevent abuse, debug issues, and improve reliability
• Respond to support and content reports

We do not use your data for third-party advertising.

3. Third-Party Services

4. Data Retention and Deletion

Most Bifrost app content is stored locally on your device. You can delete conversations, characters, or local app data from inside the app where available, or by deleting the app from your device.

Messages sent to the chat service are processed to generate responses and to enforce service limits. Operational logs may be retained for a limited period for security, debugging, abuse prevention, and reliability.

Apple manages subscription records. Deleting local app data does not cancel an active Apple subscription; subscriptions must be managed in iOS Settings or the App Store account settings.

5. Data Security

• HTTPS for network requests
• Server-side storage of sensitive API keys
• Apple-signed subscription verification
• Limited conversation context for AI requests
• Local-first storage for chat history and companion state

No system can be guaranteed completely secure, but we design Bifrost to minimize unnecessary collection and avoid account data where it is not needed.

6. Your Choices

• Use Bifrost without creating an account
• Delete local conversations and characters where the app provides those controls
• Delete the app to remove local app data from your device
• Manage or cancel subscriptions through Apple
• Disable notifications in iOS Settings
• Contact us about privacy, support, or content concerns

7. Children's Privacy

Bifrost is rated 12+. Users under 13 should use the app only with parental or guardian consent. If you believe a child has provided information to us in a way that requires deletion, contact us and we will review the request.

8. International Processing

Your AI requests may be processed in countries other than your country of residence by our service providers, including Cloudflare, Anthropic, and Apple. Their privacy policies describe their data handling and transfer practices.

9. Tracking and Advertising

Bifrost does not include third-party advertising SDKs and does not track you across apps or websites for advertising. The app uses local storage for app functionality and preferences.

10. Changes to This Policy

We may update this Privacy Policy from time to time. We will update the "Last Updated" date when changes are made. Your continued use of Bifrost after an update means you accept the revised policy.

11. Contact Us

If you have questions or concerns about this Privacy Policy or Bifrost's data practices, contact us: