Track your heart rate while doing jiu jitsu

Track your effort, take notes, learn what to do in every situation, connect with your training partners, and forecast your belt progress.

Coming soon to the App Store.

iPhone Watch Apple Health Chest strap

Track your workouts

Get credit for your hard work

Tap in and get to rolling. After class tap out and your workout lands in Apple Fitness and Health via your Apple Watch.

  • Precise heart rate data while you roll
  • Calories and effort tracked
  • Manually enter workouts for calorie approximation
0 kcal active
In Apple Health
Martial Arts
Avg heart rate
143bpm
Mat time
1:04hrs

Connect to the community

Everyone you roll with, in one place

Connect with your training partners, coaches, and professors. They'll see your sessions, posts, and promotions, so you can cheer and encourage each other.

  • See who trained tonight
  • Their promotions, the day they happen
  • Keep your home gym with you

Learn from your rolls

Stop getting caught by the same thing

Write what happened tonight and Randori hands you the answer, on film, from instructors worth learning from.

  • Say an armbar caught you, see how to defend it
  • Learn counters to the counters
  • Notes for white through black belt

Watch your progress

Know how close you actually are

Every belt and stripe you've earned, with the real dates. Randori reads your training and gives you an honest range for what's next.

  • Your whole road, in one place
  • An honest range, built from your own hours
  • Your professor still ties the belt
Brown, next est. 2027

612 hours at purple, 2.4 sessions a week. The range tightens every time you train.

The app

Track your workouts. Connect to the community. Learn from your rolls. Watch your progress.

The Randori Train room: three sessions this week, four hours 28 minutes of mat time
Your week
A session post with its heart-rate trace, 87 minutes and 958 calories
A session
A promotion post: two stripes on a white belt at Gracie Barra Pasadena
A promotion
The Learn room: film and the curriculum from white belt to black
The curriculum
A technique lesson playing film in YouTube's own player
A lesson
A Randori profile card with belt, academy, and mat time
Your card

Yours alone

Your training stays yours

Your workouts live in Apple Health. Everything else rides your own iCloud, straight to the partners you chose. Open the app and start training; there's no account to make.

Read the privacy policy.

Health data
Stays on your phone
Your posts
Your iCloud only
Your notes
Stay on your iPhone
Report & block
Built in

Your training, finally counted.

For iPhone and Apple Watch.