Running Companion
Runs, intervals, Zone 2 training and hybrid races on your iPhone, with live heart rate alerts and spoken cues that keep working while the screen is locked.
Train in the right zone
Connect a Bluetooth heart rate sensor or your Apple Watch, pick a zone, and hear "Slow down" or "Speed up" when you drift out of it.
Intervals and hybrid races
Build workouts from timed, distance and open segments with their own timers. Recoveries can end when your heart rate drops to a target.
Private by design
No account, no servers, no ads. Your workouts stay on your iPhone and in Apple Health.