iPhone Screenshots


Onyx is the world's smartest digital trainer.

With just a camera it counts your reps, corrects your form, and motivates you at the perfect time.

It's everything you want in a personal trainer, without the cost, and on your schedule.

Want to know if you're doing it right? Your coach tells you to bend lower, straighten your back, and jump higher in real time.

Want to understand how you're improving? Onyx shows you stats that were never before possible.

For an extra kick, turn on the leaderboard and compete with your friends.

Onyx also connects to Apple Health so you can log all your workouts and close your rings.

There is no fitness app more motivating or more life-like. Check it out and see for yourself!

* Exercise tracking is only supported by TrueDepth devices (iPhone X, Xr, Xs, Xs Max), if you have an older device you can still enjoy our catalog of workouts and videos!

Our mission:

We believe everyone deserves their own personal trainer, but trainers can be expensive, out of the way, and unavailable at the best times.

With Onyx, the world's smartest trainer is always at your fingertips - any time, anywhere.

Terms of service: https://www.onyx.fit/terms-of-service

What’s New

Version 1.3.0

- Support for iOS 13!
- You can now connect Onyx with Apple Health to log your workouts and close your rings.

We regularly update Onyx with performance improvements and bug fixes to bring you the best possible workout experience.

Ratings and Reviews

4.7 out of 5
134 Ratings

134 Ratings

guitarhero93 ,

Very motivating

I came across the video on reddit. Interesting to see where this went with the content and competition beyond just tracking. The tracking actually worked really well for me. The best part in my opinion is the motivation you get both from the competition aspect, and also the fact that it’s “watching” you and nudging you to do better. I’d love to have a way to compete with my friends!

TextRepeater ,

Love the form feedback!

I’ve been looking for something that helps me understand my form. I’ve been recording a lot of my workouts and sending them to a trainer friend to get feedback, so it’s pretty amazing to get it in real time! Also I like that it shows you the video example before you start each exercise so you have some time to remember how to do it.

rishijash ,

What a fantastic app

Found out this app on ProductHunt on the launch day. Installed it just to see how it works, tried few workouts and then stopped using it. Missed the gym today and thought of giving it a try and I completely fell in love with it. Had a kickass workout. Thank you to the entire team for developing such an amazing product. 💪


Onyx Inc.
215.2 MB
Health & Fitness

Requires iOS 11.1 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating
Rated 9+ for the following:
Infrequent/Mild Profanity or Crude Humor
© 2019 Onyx Inc.
In-App Purchases
  1. Monthly Subscription $14.99
  2. Yearly Subscription $99.99
  3. Monthly Subscription $14.99


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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