iPhone Screenshots


Conquer your workouts with confidence every day. Choose your target area for focused training. Train anywhere—even at home. Over 170,000 women have crushed their fitness goals by using FBK. On the gram? Follow us @FITbyKaty and join the #FBKFitFam

Intimidated by heading to the weight rack at the gym? We’ve all been there. That’s why we created an app that helps you plan your workouts like a personal trainer. Our workout generator brings you infinite combinations of workouts from Katy Hearn so that you can feel and look stronger. Whether you’re new to weightlifting or a seasoned gym goer, use the workout generator and you’ll never get bored. Check out our top features below:

Workout Generator (Included In All Plans)
* Over 400+ exercises
* Instructional workout videos for each exercise
* Choose between at home or gym workouts
* Focus on the muscle group of your choice with 6 target areas
* New exercises continually added

Seasonal Plans (Premium feature):
* A new promo each season. New exercises in a constructed plan that’s expertly designed to help you look and feel stronger.
* Access to all previously available plans

Forum (Premium feature):
* Stay connected with our community of over 170,000 women who help, encourage and support one another.

Monthly Discounts (Premium feature):
* Get access to exclusive monthly discounts on our favorite health & wellness products.

Subscription Pricing and Terms:
FIT By Katy is free to download. Ongoing use requires an active Basic or Premium membership. Monthly subscription users are billed each month. You will be charged through your iTunes account at confirmation of purchase. Subscriptions renew automatically unless canceled at least 24 hours prior to the end of the subscription period. Subscriptions can be managed by going to Account Settings in iTunes. Refunds are not available once a purchase has been made. Read our full Terms of Service https://www.fitbykaty.com/terms-of-service, and our Privacy Policy https://www.fitbykaty.com/privacy-policy.

What’s New

Version 2.15.3

Premium FITFam members now get Build a Booty too! Plus, easily purchase any promo directly in the app. We took care of a number of bugs too - they were driving us all crazy!

Ratings and Reviews

4.2 out of 5
864 Ratings

864 Ratings

Ashley Laray ,

Love it but...

First and most importantly, THIS APP IS AWESOME!! I love the workout generator(brilliant).. and the ability to hop into any of the promos for a self challenge!


The complaint I have is even after an update I still have problems with the workout generator closing out almost every time I swap out of the app, or the screen sleeps during the set. :( it is driving me absolutely insane!! Also, everytime I open the app it tells me there is an update, but it never updates. I checked settings- no update. App Store-doesn’t even tell me there is an update or that the app has updated. I have tried uninstalling and reinstalling.. also a hard reset. Still the same problem :( I tried everything I can think of, and I know this last update was to fix this problem. So I’m at a crossroads bc I love this app, but I’m having issues with it :(. I’m going to keep if for another month and see if it improves.

Developer Response ,

Thanks so much for your feedback, our team has worked to quickly resolve this issue. We've rolled out a fix, so be sure to update the app. If you're still having problems, reach out to support@fitbykaty.com and we'll get you taken care of ASAP.

jcrow1224 ,


I wrote my previous review below just shortly after purchasing the 2018 Spring Promo. Since then I have competed in the 2018 Summer Challenge and purchased the Workout Generator. I still love the app and use generator every time I go to the gym.
I do wish the workout generator had a feature that would allow you to indefinitely ignore a certain workout if you’re physically incapable of doing it so that it won’t pull that into your mix again. It seems like the “Choose Another” gets stuck on pulling in the same workouts over and over. For example, I probably had to randomize 20-25 times until it finally pulled in the cable hamstring curl I was looking for as part of my workout. Or, it would be so cool if you could scroll through a list and pick the combination of workouts you wanted instead of the random selection. I saw they are working on a way for the app to track amount of weight used as well, can’t wait!!! For a startup app I’ve been really impressed and can’t wait to see what new features come this year!!!

Spring 2018 Review:
Absolutely love the app! I purchased the spring promo workouts and I love the organized workouts and video access. Makes for an easy transition to the next workout. I only hope enhancements come in the future to note weight on each workout and hold your place as you complete the weeks and relaunch the app each time. Overall, this turned out to be a great app. Thank you so much Katy & Hayden!

nsfit ,

Good but could be better

I want to start off by saying that I absolutely love Katy and the empire she’s built. I’ve been following her on Instagram for awhile, which prompted me to get the app. The workouts are great, it’s easy to use (I have the basic package, broke college student here🙋🏼‍♀️). For the most part, there’s a little note below each of the video with more instructions, however, on many workouts, there’s not. I’m by no means new to the gym, and so it hasn’t been all that hindering to me, but I think that that could use some updating. Now for what might actually be a deal breaker for me: when choosing at home for the workout generator, it assumes that you have dumbbells and multiple kinds of resistance bands. I know that these aren’t expensive necessarily, but it’s tough to be in a dorm and try to make it work without these things. I have to do a lot of make-shifting to make it count. I wish they would make it so you could filter out workouts that require equipment you don’t have. Ex: I have a full set of “booty bands” (the looped ones) but not a long band. So if I could filter out the workouts to only include body weight and bands, it would literally be the perfect app.

Developer Response ,

Thank you or submitting your feedback, we are always hoping to improve the performance of the app for the users. We have taken note of these suggestions and are working diligently to get new features added in for our users!


Undefined LLC
73.1 MB

Requires iOS 11.0 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating
Infrequent/Mild Sexual Content and Nudity
In-App Purchases
  1. Basic Edition $4.99
  2. Premium Edition $18.99
  3. Basic Edition $4.99


  • Family Sharing

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

You May Also Like