Privacy Policy
Red Letter Cards is an iOS app published by Known by One, LLC (“we,” “us,” or “our”). This Privacy Policy explains what information the app handles and how.
What the app stores on your device
The problem you pin, your journal entries, your theme preference, and your reading history are stored locally in your iPhone’s Application Support directory. They are not transmitted to our servers, are not backed up to our infrastructure, and are not linked to your identity.
What the app transmits
To generate each daily reflection, the app sends your pinned problem text, your three drawn verses, and selected onboarding preferences (e.g. the name you use for God) to our Supabase Edge Function, which forwards them to Anthropic’s Claude API. Anthropic does not train its models on data sent through its API. We do not log or persist the request or response on our servers.
No account required
The app does not require an account, email address, or any personal identifier. Each install is associated with an anonymous Supabase user ID — a random UUID — used solely to authenticate requests to the reflection-generation service.
Subscriptions
Subscription billing is handled by Apple through the App Store and by RevenueCat for entitlement management. We do not receive your name, email, payment method, or other personally identifying information from these services.
Notifications
Daily reminder notifications are scheduled locally on your device. The app does not use push notification servers; no data is sent to our infrastructure for reminders.
Deleting your data
Deleting Red Letter Cards from your iPhone removes all locally stored data. We hold no separate copy of your problems, readings, or journal entries. For any other data request, contact us at the address below.
Children
The app is not directed to children under 13. We do not knowingly collect any information from children.
This website
This site uses no analytics, tracking, or cookies.
Contact
Questions about this policy? Email us at contact@knownbyone.com.