Advanced Biometric Performance Platform
Know when to push.
Know when to rest.
CoreLoop turns Apple Watch biometrics into daily recovery scores, live workout coaching, and coach-ready reports — all on your device.
The flagship feature
Core Effort
Live guidance on whether you're building, holding, or overreaching — before you feel it.
Too easy. Push harder to build productive strain.
Optimal effort. You're in the sweet spot.
High strain detected. Dial it back before overreach.
Strain acceleration,
in real time.
Core Effort monitors strain rate and acceleration across your iPhone and Apple Watch. A living yellow-orange-red system tells you exactly where you are — and where you need to be — every second of every workout.
- Live intensity cues on iPhone and Watch
- Strain rate and acceleration monitoring
- Session coaching: Easier, Default, or Harder
- Custom phase alerts before you overreach
Live intensity bar on iPhone
Coach face on Apple Watch
Yellow, orange, and red zones
Health
Your body.
Decoded daily.
Recovery, strain, sleep, and nervous system analytics — updated every morning from Apple Watch biometrics.
- 7-day recovery and strain trends
- Advanced HRV: RMSSD, SDNN, LF/HF, Poincaré
- Morning coaching and weekly insights
- Lifestyle correlations and training zones
- Cognitive readiness assessments
Workout
Every rep.
Every run.
Guided.
Training plans that adapt to your recovery. Quick starts for any session. Custom workouts you can build, import, and share.
- Recovery-aware training plans with weekly calendar
- Quick Start presets and fully custom workouts
- Live HR zones, strain rate, and exercise guidance
- Import and export .zip, PDF, and workout files
- Share results via Messages cards and social stories
Live workout with Core Effort bar
Recovery-adjusted training plan
Build and share custom workouts
Reporting
Performance reports.
Coach-ready.
Generate professional PDF reports in seconds — daily, weekly, monthly, or per workout. Built for athletes and the coaches who guide them.
- Quick reports: Today, This Week, This Month
- Single-workout performance breakdowns
- Custom date ranges with athlete and coach fields
- Recovery, strain, sleep, and training analytics
- Export and share as polished PDF documents
Weekly performance summary
Per-workout breakdown
Custom range with coach fields
Apple Watch
On your wrist.
In sync.
A dedicated Watch companion with recovery at a glance, live workout coaching, and complications for your favorite faces.
- Recovery and strain complications
- Live workout faces: Minimal, Metrics, Coach
- Real-time Core Effort intensity on your wrist
- Instant sync with iPhone via WatchConnectivity
100% on your device.
All biometric processing happens locally. No cloud. No servers. Your health data never leaves your iPhone or Apple Watch.
Get CoreLoop.
Train smarter. Recover faster. Perform at your peak.
Requires iPhone with Apple Watch. iOS 17 or later.