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- Redesign the watch app into an active-workout runner: a root gate shows the in-progress workout's exercises or prompts to start one on iPhone, and each exercise runs as a horizontally-paged HIIT cycle (count-up work, count-down rest with final-three-second haptics + auto-advance, One More / Done on the last set). Replaces the old history list. - Add a configurable rest-between-sets duration in iPhone Settings (default 45s), synced to the watch over WatchConnectivity. - Launch the watch app into the session when a workout starts on the phone via HealthKit (startWatchApp); the watch runs an HKWorkoutSession for foreground runtime and ends it when the workout finishes. Adds the HealthKit entitlement + Health usage strings on both targets and WKBackgroundModes on the watch. Claude-Session: https://claude.ai/code/session_018gg69MaUetDNzWzBXisfMV
Workouts
A workout tracking app for iPhone and Apple Watch. Build workout splits, run sessions, and track your progress — with your data stored as plain JSON files in your own iCloud Drive.
Key Features
- Workout splits — organize exercises into reusable routines with custom colors and icons. Start with built-in starter splits (Upper Body / Core / Lower Body) generated from a bundled exercise catalog.
- Exercise library — a bundled catalog of starter exercises (bodyweight and machine-based) to populate your splits.
- Run a workout — start a session from a split, track sets/reps/weight or timed exercises, and mark exercises complete.
- Progress tracking — weight-progression charts per exercise across past sessions.
- Apple Watch companion — starting a workout on the iPhone launches the watch app straight into it; run the session from your wrist as a HIIT cycle: count-up work phases, count-down rests with final-three-second haptics and auto-advance, and One More / Done on the last set. Rest time is configurable; changes sync back to the phone.
- iCloud Drive sync — your data lives as human-readable JSON in your iCloud Drive, synced across devices and visible in the Files app. iCloud is required.
Architecture
iCloud Drive JSON documents are the sole source of truth; a local SwiftData
store is a rebuildable read-through cache populated exclusively by an
NSMetadataQuery observer (one-way flow: files → observer → cache). The phone is
the only device that touches iCloud Drive; the Apple Watch is a thin remote that
round-trips workout changes through the phone via WatchConnectivity.
See REQUIREMENTS.md for the data model and CLAUDE.md for project guidance.
Building
The Xcode project is generated with XcodeGen:
xcodegen generate
open Workouts.xcodeproj
Requires Xcode 26 (iOS 26 / watchOS 26, Swift 6).