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Health & Wellness · iOS

Coldsmith

Cold plunge and breathwork

Coldsmith is a wellness app for cold plunge, ice bath, and breathwork practitioners. Guided Wim Hof-method breathing sessions, cold exposure timers, streak tracking, and heart-rate integration via HealthKit. It ships with subscription paywalls, onboarding, and retention loops. Idea to App Store in 2 weeks.

View on the App Store
Guided Wim Hof breathwork sessions
Cold exposure and ice bath timers
Streak tracking with HealthKit integration
Custom breathing protocols

In the app

Coldsmith screenshot
Coldsmith screenshot
Coldsmith screenshot

How I built it

React NativeTypeScriptExpoHealthKitSupabaseRevenueCat