Build custom interval workouts, hit your calorie targets, and track your weight loss — all backed by science-based calculations and synced with the apps you already use.
From building your first workout to hitting your goal weight.
Build interval workouts from 400+ exercises with custom work, rest, and transition times.
Science-based daily calorie targets from your stats and goals, updated as your weight changes.
Log weight over time and see your trajectory toward your goal with a target loss rate you control.
Pair a Bluetooth HR monitor for live heart rate tracking and more accurate calorie burn estimates.
Design multi-group workouts with custom rounds and transitions. Save and reuse any time.
Connect Strava and Google Fit to auto-import runs, rides, and workouts into your calorie log.