iPhone Screenshots


With over 1 million members discovering their Body Clocks worldwide, eating and exercising at the right time to keep fit has never been easier.

From Body Clock to fitness planner, this app uses science to help you monitor and improve your wellbeing & health. Go beyond the calorie counter and track your sleep, steps and heart to optimize your workouts, diet and lifestyle with Rthm.

Top 5 Reasons to Download:

1. Body Clock- Not Just What You Do, But When You Do It
-Discover the best times to eat, exercise, sleep, meditate, and more.
-Based on your own unique patterns
-Supported by 30+ years of research
2. Fitmoji Smart Coach: Personalized fitness plans based on your needs and objectives. Over 100 video guided workouts
3. Sleep well: Rthm tracks your sleep automatically and maps your circadian rhythm to provide recommendations on how you can improve your sleep & health
4. Workout & nutrition: Being able to monitor your heart & sleep gives you a unique insight into your body clock. Rthm helps you decide when to hit the gym, have a moment of mindfulness or fuel your body.
5. See results: Track your Resting Heart Rate over time to see if you are overtraining, under slept, or doing just fine!

Download Rthm to receive useful and insightful information on your biological clock and improve your health, heart & fitness today.


Rthm offers an annual auto-renewing subscription for $ 19.99.

This price is for United States customers. Pricing in other countries may vary and actual charges may be converted to your local currency depending on the country of residence.

Your Rthm subscription will automatically renew at the end of each term and your credit card will be charged through your iTunes account. You can turn off auto-renew at any time from your iTunes account settings but refunds will not be provided for any unused portion of the term.

Read more about our terms and conditions here-

Read more about our privacy policy here-

What's New

Version 5.2.3

Bug fixes and UI improvements

- A launch time crash is fixed, where a user entered sleep is saved as duplicate on a day with calculated sleep.
- Fixed a crash when user scrolls through body clock zones

Ratings and Reviews

1.9 out of 5

7 Ratings

7 Ratings

Same app repackaged with same issues...


This app has been on the market and had other ratings that weren’t great. I am not sure how they were able to re-list it and eliminate their bad ratings but they did. Save your money.

Failed at the freemium model


I can’t test the app unless I sign up for a quite steep membership... also there’s no option for switching between imperial and metric systems... so don’t even bother with this app

Nice app


The idea for this app is honestly awesome—I'm not sure how accurate it really is, but I generally believe it. What I'm mainly confused about is if it adjusts to you and your activities or just has a general clock for your age, height, weight, and sex.
Also the interface is a bit confusing—there should be a key on the side of the main display or something so you can distinguish what color means what. Also, the way it shows time is confusing—why are the times shown around the body clock so random? Why isn't there a tracker for what time it actually is?
It's a bit frustrating but ok app

Developer Response

Thank you for your comment,

The algorithms are quite accurate, in most cases developed using millions of data points. The Body clock is based not only on your age, height, ect..., but also on your unique sleep and activity patterns, to make a map of your circadian rhythm.

We agree the design can improve and clarify, and we are working to remedy your concerns and include a key to indicate which each color means. Thank you for your honest and helpful critique.

The times around the Body Clock are not random, but indicate your historical wake time, and then divide your day into four quadrants based on that wake time.

Overall, these are great criticisms and we are working on them now!,



Rthm Technologies Inc.
77.7 MB
Health & Fitness
Requires iOS 10.1 or later. Compatible with iPhone and iPod touch.
English, Simplified Chinese
Age Rating
Rated 4+
© 2017 Rthm Technologies Inc.
In-App Purchases
  1. Rthm Blue $5.99
  2. Rthm Blue $29.99


  • Family Sharing

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

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