Summary: Cairn does not require an account. Visit logs are stored on your device. If you enable iCloud, Apple syncs your data within your private iCloud account. We do not sell personal data.
Anonymous app usage may be sent as coarse events (app opened, feature used) with a random device identifier — no name, email, or location in those events. See the App Privacy label in the App Store.
Contact: support@willalston.workers.dev