iPhone Screenshots


Join Katy Hearn and millions of women just like you, and begin your transformation today! With FIT by Katy, you'll enjoy Katy's daily updates (the Daily Katy), a community forum for challenge participants to share thoughts, photos, and encouragement with others like you, and a complete, interactive set of workouts to help you achieve your goals. In addition, challenge participants can "check in" with Katy once a week so that Katy can monitor and adjust your macros and workout just for you!

What's New

Version 1.1.3

NEW: Adds the nutrition guide to the Build a Booty plan
NEW: Adds cardio guidance to the Frequently Asked Questions
FIXED: Daily Katy now scrolls so it's visible on smaller devices

Ratings and Reviews

4.5 out of 5
264 Ratings
264 Ratings

Loving this for the Challenge

Sweet n toxic

So it’s my 6th challenge with Katy, And I have to say I do love having this app with all of the workouts and videos in one place. Prior are used to have to print out the workouts and make sure I brought my binder to the gym no more need to do that as everything is easily accessible on your phone. No more switching back and forth to Instagram to search hashtags if you’re unsure of the workout either.

Understanding this is brand new and I’m sure there are MANY changes to comer there are some things I do wish the app had; a spot to keep track of your weights/ reps, search bar for comments in the challenge forum,a longer timer for taking picks on your own,-‘d that the weeks don’t automatically switch on you until you’ve completed the entire week prior. Other than that it’s truly great! I love being able to check right in with Katy and having it log all my pictures as well as having her responses all in one spot.

If you’ve never done a challenge with her you’re truly missing out!

Amazing inspiring.


First of all let me state that Katy Hearn and Haydn Schneider are absolutely amazing incredible trainers that truly care about the client experience. She clearly states that you have to purchase a challenge in order for the app to be available for for use, never pretended like it was anything different. I am so grateful to have these two as my trainers and I’m so excited to see where this journey takes me the app is absolutely incredible i’m so grateful to have these two as my trainers and I’m so excited to see where this journey takes me the app is absolutely incredible and so easy to navigate. You’re putting in so much time and effort to continually update the app and make it a better experience for their clients
** please do not listen to the trolls that one star this app because they clearly have a personal issue. This is a client experience it’s not a YouTube’s videos... yes you have to pay money to have accountability from your trainer and have them update your macros on the weekly basis**

Amazing People!

Destini Ann

Katy and Haydn go out of their way to make everything perfect for their customers. The app had some glitches at first, like any app would, and Katy and Haydn handled it with such patience. I truly applaud them for being so down to earth and professional. They had many many people asking the same questions or not paying attention to what was told and they answered everything with a professional attitude. This app is made for client experience and is not very useful if you are not part of her challenges. She made this very clear from the get go, yet some people still don’t understand that. This app is beautifully crafted and easy to use. Katy and Haydn take everything we suggest and try to work toward making it even better than it already is.

I am proud to be a client of Katy and Haydn!


Undefined LLC
53.6 MB
Health & Fitness
Requires iOS 10.0 or later. Compatible with iPhone, iPad, and iPod touch.
Age Rating
Rated 12+ for the following:
Infrequent/Mild Sexual Content and Nudity
© Katy Hearn Fitness LLC


  • Family Sharing

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

You May Also Like