Cairn is a calm fitness companion. Workouts pull from HealthKit, habits live in stone chains, journal entries hold what the numbers can’t. It’s the only Northland app on a subscription — because health data deserves to stick around, and because software that has to live for years has to be funded the same way.
§ The story
Built around the Stone Chains habit system: every check-in adds a stone to the chain, every miss leaves a gap. The point isn’t to never miss — the point is to look back and see the shape of the season honestly.
§ Screens
Pricing
Free with Cairn Pro — $4.99/mo · $29.99/yr
Platforms
iPhone · iPad · Watch
Built with
SwiftUI · HealthKit · SwiftData · Live Activities · WidgetKit · WatchKit
Expected
2026-Q3
§ More from Northland
Other apps from the studio.
Other apps from the same studio, made by the same person.
