Oak is a production iOS fitness app for experienced lifters. It integrates workout logging, program management, check-ins, and Apple Health data with an AI coach grounded in each user’s training history.
Built for experienced lifters on purpose. They already track everything; what they lack is one place where logs, recovery data, and check-ins inform the same coaching decisions.
Features
- Strength and cardio training programs
- Workout logging with long-term performance history
- Check-ins covering training, recovery, and subjective feedback
- Apple Health integration through HealthKit
- Conversational coaching and scheduled reports built on stored training data
Release
Shipped to the App Store with RevenueCat subscriptions, Sign in with Apple, push notifications, analytics, and production release builds.
Stack
- React Native, Expo, and Expo Router
- Convex for data, authentication, and application state
- HealthKit, RevenueCat, and Sign in with Apple