Natural-language workouts
Write or dictate distances, durations, repeats, warm-ups, cool-downs, tempo runs, and track sessions.
For iPhone and Apple Watch
IntervalSync
Build interval workouts by typing or speaking them in plain English. Send them to Apple Watch with live pace, heart rate, distance, and GPX route guidance.
App Store link coming soon
Contact support
Plain English in, ready workout out
Describe it. Sync it. Run it.
IntervalSync turns workout plans like "run 1km, walk 2 minutes, repeat 4 times" into clean, editable intervals without rigid templates or fiddly forms.
Apple Watch metrics
Send workouts to Apple Watch and run with live heart rate, pace, distance, and pace-target drift alerts.
GPX route guidance
Import GPX routes, preview planned outdoor courses, and get route progress with off-route feedback on Watch.
Made for real training
Intervals and routes stay private.
Workouts are stored on your device. Optional iCloud backup keeps them in your private iCloud account, and Health data stays in Apple Health. No account, no ads, no tracking.
0
accounts required
GPX
route import and Watch guidance
Health
data processed on device through Apple Health
Workflow
From plan to workout in three steps.
1. Describe the session
Type or speak your plan in everyday training language.
2. Fine-tune intervals
Review the parsed workout, adjust details, and assign a route when you need one.
3. Run on Watch
Start from Apple Watch and follow live metrics, pace alerts, and route feedback.