Cairn is designed to keep core fasting data on your device. Depending on the features you use, that may include your profile name, fasting plans, session history, Forest placements, settings, and other app state saved locally.

If you purchase Bloom, purchase and subscription status may be processed through platform billing providers and subscription infrastructure used to validate access.

We use information primarily to operate the app, remember your settings, unlock purchases, and improve reliability and product quality.

We do not describe Cairn as a medical service, and information in the app should not be treated as medical advice or as a substitute for professional care.

We do not sell your personal information. We may share limited data with service providers only when needed to operate purchases, app delivery, analytics, security, or legal compliance.

Locally stored app data remains on your device unless you delete it, remove the app, or use backup or restore features. Purchase records may be retained by the platform or payment providers under their own policies.

You can control much of your data through in-app settings, including local data deletion and backup flows when available.

We may update this policy from time to time. When we do, we will post the revised version here with an updated effective date.