Welcome to the Mountainside Fitness app! Mountainside Fitness is Arizona’s largest locally owned health club chain, with locations throughout the Valley. The app allows our members to check class schedules at all of our locations, add a class to your calendar, and register for Peak Performance classes. Create personal goals and track your workouts both in the club and on the go. Our app allows members to sync with popular fitness tracking devices to stay motivated. And no need to carry a membership card, members are able to check in to the club with our app.

Mountainside Fitness app uses the Health app that is pre-installed on your iPhone to sync nutrients and workouts data. Because of this Mountainside Fitness app will ask you to grant read- and write-access to your nutrients and workouts data.
Your Health sync data is only visible to you and is not sent to anyone but yourself.

What’s New

Version 3.1.1

- Bug fixes & enhancement
- Completely redesigned App and User Experience
- Truly club branded User Interface
- Significant performance improvements on all pages

Ratings and Reviews

1.6 out of 5
49 Ratings

49 Ratings

Org.MC ,

Total downgrade

I’m a manager at a Club Pilates studio in the valley and we just had an app upgrade as well that has blown away the old app entirely. The only reason I have a mountainside membership is for the classes. With this new app I no longer have the map option to navigate between the studios with ease to schedule classes at locations that work for me. The “fitness consult” and “workout assistance” is the same thing. And the “#hastag” is a slideshow of Instagram posts, total waste of space. I’m cancelling my membership anyway due to the availability of classes that I prefer, like why have a huge morning gap between the 5am classes and 8am? Going with Class Pass.

B-boy E. ,

I changed my review

Just yesterday I wrote a review on how terrible this app was, and so in hopes that there would be a new update, I deleted the Mountainside Fitness app, and re-downloaded from the app store.

I’m sure glad I did. Huge difference! So far so good. Loving the new update. Keep up the great work.

Apple star twizzle ,

Absolutely terrible

Would give 0 stars if I could. I can’t even sign in because I never received an email. I thought it was my email, so I tried 3 more different emails. It just says “Error occurred, please try again after *some* time”. Some time? How much time? Then the classes are not available online anymore and if you call, the customer service says “download the app!” Definitely giving me a reason to cancel my membership and find a gym with an actual working app.


SmartWeights Inc
91 MB

Requires iOS 9.0 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating
Unrestricted Web Access


  • Wallet

    Get all of your passes, tickets, cards, and more in one place.

  • Family Sharing

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

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