iPhone Screenshots


Band together to improve your fitness by competing in a group challenge. Enlist friends, family, teammates, colleagues, or whoever, to become gym rats. More effective than a simple step challenge, the goal is to workout more often; any activity counts.

-How it works-

* Create or join a group challenge
* Invite as many people as you'd like
* Post workouts to the group
* Keep doing that, a lot
* See leaderboard and have fun competing


The app is free form and allows for creating your own rules of competition. Score by total number of workouts, miles, minutes, calories, steps, or come up with your own point system. All that's required for a workout is a photo and a title. The photo can be of the gym equipment, a sweaty selfie, a screenshot of another app, or whatever your group deems acceptable.


Don't care about score? No problem, the app can be used as a general group activity log. Keep each other accountable by having a shared space for tracking workouts.

-Integrates with the Apple Health App-

GymRats has the ability to import workouts from the Apple Health app. This not only includes activities recorded on the Apple Watch, but any activity saved to your device.

What’s New

Version 26

* Fix analytics tracking

Ratings and Reviews

4.8 out of 5
364 Ratings

364 Ratings

delightedusercc ,

The perfect social fitness challenge app

I never leave reviews but I just love this app and I appreciate the responsiveness of the developer. My friend and I wanted to do a fitness challenge for fun and I researched every social fitness challenge app in the App Store, and after trying a bunch I picked this one because it has all the features I was looking for and nothing more. It's super simple and easy to use. Also, the developer Mack is super responsive, and I was pleasantly surprised that he immediately responded to some suggestions I gave. Thanks for taking the time to build, maintain, and improve this app!

nikkitwostep ,

Need Motivation? Use Competition!!!

I’ve been using this app since June to motivate my friends and coworkers to get up and start moving especially during a time like this...COVID!! As a leader I’ve had to find creative ways to make the challenges fun and harder every month but it’s working!!! In June I had 7 participants...the November challenge starts in 2 days and I have almost 20 people ready to compete 💪🏾💯 I love this app!!

celeritea ,

simple and perfect for group challenges

Thanks for keeping the app simple/easy to use and ad-free!! This is literally the only app my friends and I found that suited our “accountabilibuddy” system for working out. Love the freedom to include specific workout details instead of choosing from presets.

App Privacy

The developer, Mack Hasz, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Linked to You

The following data may be collected and linked to your identity:

  • Health & Fitness
  • Location
  • Contact Info
  • User Content

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Usage Data
  • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

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

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