Support

Need help with DeCaf? Submit a bug report, ask for a feature, or request account deletion below. Forms open your email client to support@decaff.app with a prefilled message (no public ticket API yet).

Prefer email? Write us anytime at support@decaff.app. Include your device model and iOS version when reporting bugs.

Report a bug

Tell us what broke. Device and OS details help a lot.

Feature / request

Ideas, wishlist items, or product feedback.

Request account deletion

You can delete your account in the app under Settings → Delete Account (calls authenticated DELETE /api/v1/auth/account). If you cannot use the app, submit a deletion request here and we will process it manually.

This requests permanent deletion of your account and associated data. It is not instant from this page.

Frequently Asked Questions

How is my caffeine level calculated?

DeCaf models caffeine metabolism using an exponential decay with a 5-hour half-life, so you can see how much caffeine remains in your system over time and how it may affect your sleep.

How do I delete my account?

In the app (preferred): open DeCaf → Settings → Delete Account. That permanently removes your account and data via our authenticated API.

From the web: use the deletion request form above. We verify the request and delete the account matching that email. Authenticated web delete may be offered later when the API is publicly available for browser sessions.

How do I restore my purchase?

Open Settings and tap Restore Purchases. Your DeCaf Pro subscription or lifetime purchase will be restored on any device signed in to the same Apple ID.

How do I manage or cancel my subscription?

Subscriptions are managed through your Apple ID. On your device, open Settings → [your name] → Subscriptions to change or cancel your DeCaf Pro subscription.

Privacy

See our Privacy Policy for details on how your data is handled.