The world on screen reacts to your real heart rate, live — a native app with Apple Watch integration, mounted on your bike, iPad or iPhone.





Get an email the moment it's live in the App Store.
Performance Lab
Free to try right now — pick Stats Ride as your style on Recovery Ride, no Pro required.





One account, every device — start a ride on your bike's iPad, check the numbers on your phone, review history on the web. Your rides sync automatically, no extra setup.
Zone-weighted training stress (a "TRIMP"), running total for the ride.
How fast load is accumulating right now — a rolling window, not the cumulative total.
Output per heartbeat — a power-meter-free proxy for aerobic fitness.
How far your current avg HR has crept above your first-5-minute baseline, at roughly the same effort.
Estimated wattage from your cadence and resistance targets — no power meter required.
Every ride classified — Recovery, Endurance, Threshold, VO2 Max/HIIT — from its own zone-time mix.
Your heart rate line is colored by exactly which zone it sits in at every point on the curve — not an approximation, geometrically exact.
Every ride scored with a zone-weighted TRIMP and rolled up over time, so you can see overreaching before you feel it.
The same metrics endurance coaches use to judge aerobic fitness — computed automatically from every ride, no extra hardware.
How fast your heart rate drops after a hard effort — one of the clearest signals your fitness is actually improving.
Every ride classified — Recovery, Endurance, Threshold, VO2 Max/HIIT — tracked over time, with a nudge when you’ve skewed too hard one way.
Every ride saved with its full HR curve and zone breakdown — filter, compare against your own averages, or delete anything you don’t want kept.