Tabata timer · Strength training
Every second counts.
- Tabata & intervals20 on, 10 off, or your own timings, with a coach in your ear and your heart rate on the wrist.
- Lift trackingLog every set, see records fall, and get the next weight to lift.
- ChallengesSend a workout to a friend. They see your score. Only Iron Interval unlocks it.