Audio-coached HIIT workouts

Fit Radio LLC

Designed for iPad

    • 4.9 • 537 Ratings
    • Free
    • Offers In-App Purchases



FREE trial for new members! Stay Inspired, Stay Strong with FASTER by SISSFiT! Cardio Coaching at your fingertips led by sisters, former D1 track and field athletes, and HIIT cardio specialists. Lauren and Kelly bring you quick 30 minute workouts curated with the top DJ mixes of every genre. Get started with your free, 14 day trial and gain access to:

Audio-coached cardio (like being in your favorite group fitness class but for a fraction of the cost!) and video-led strength workouts from top trainers Lauren and Kelly. They live and breathe it, now they get to coach you through it! You’ll have options that include:

Single Session Workouts

-Audio-coached Treadmill, Tread & Shred (treadmill/weights combo), Outdoor Run, and Elliptical workouts

-Strength workouts with video demonstrations and interval timing

-Tuesday Toning as seen on our Instagram page

Full Workout Programs

-SISSFiT’s acclaimed 4-week Accelerate HIIT Treadmill and Strength Program

-SISSFiT’s Summer 5k 4-week Running + Strength Program

-Lauren’s brand new 4-Week Prenatal Strength Program

-SISSFiT’s Transform 4-week Cardio + Strength Program

-SISSFiT’s Summer Strong Challenge

-SISSFiT’s 4-Week Fall Challenge

Close Your Rings!

-Completed workouts are shared with HealthKit and helps close activity rings on the apple watch

Ultimate Music Experience

-Thousands of DJ mixes updated weekly

-Numerous genres to suit your mood

-Playlists based on genre, BPM or activity type

What People Are Saying:

Killer Playlists

“It’s like bringing my favorite workout class with me wherever I go! The music and coaching is always fresh so I never get bored.” Jon- International Investor


“These workouts have changed my life! With my unpredictable travel schedule, I never thought I’d find a consistent fitness routine until SISSFiT. No matter where I am I can always fit in a killer workout!” Melissa- Commercial Airline Pilot

Cardio Coaching

“Your coaching has gotten me back into the racing shape I was in during my college days with a fraction of the mileage! Thanks for getting this mama of two back into shape!”

Lauren B- former D1 athlete, mom of 2

No Time Wasted

“Nothing burns through stress or provides a post-workout high like SISSFiT HIIT cardio. These workouts are my saving grace!”

Rebecca- Entrepreneur, mom of 4

- Title of service: SISSFiT

- Length of subscription: 1 Month

- Price of subscription: 19.99/month for new members

- Payment will be charged to iTunes Account at confirmation of purchase

- Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period

- Account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal

- Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings in the App Store app after purchase

- No cancellation of the current subscription is allowed during active subscription period

- Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication.

-SISSFiT shares workout data with HealthKit and helps close activity rings on the apple watch

For more information check out our Privacy Policy, Terms of Use, and Health App Information Disclosure here:

What’s New

Version 1.0.14

Bug Fixes

Ratings and Reviews

4.9 out of 5
537 Ratings

537 Ratings

mynameistakenlouann ,

SISSFiT app rocks even for old people (I’m over 60)

I’ve been doing Sissfit workouts since I found them on Instagram back in 2019. I’ve joined a bunch of the challenges and LOVE the mix of HIIT workouts. The app will be a game changer for me. I like outdoor vs. treadmill runs and now I can have Kelly or Lauren in my ear cheering me on and reminding me to keep pushing until the finish. The treadmill workouts are good too. Pushing me beyond what I would do in my own. 4.5 higher than my jog pace, yeah right. But I did that on Saturday. You can do anything for 30 seconds.
The challenges are great. With such a good community to cheer you on.
So, if you are looking for a challenge- pick this app, then pick a workout, a playlist and go! You can do anything for 30 seconds and remember why you started the workout.

thefrumpmaster ,

Great workouts but app has some minor bugs

The platform and workouts are FABULOUS but some important functionality is missing. I love the organized four week programs (Ignite, Accelerate, etc) but am disappointed that there isn’t an easy way to track progress through each week. It would be awesome if there was some indication of which workouts had been completed on the ‘workout menu’ for each program (and for each category of individual workouts, such as Outdoor Runs, 15 Minutes or Less, etc).

Additionally, I have managed to mark non-tread workouts as complete, but I can’t figure out how to officially complete a tread workout so that it shows up under the “Activity” tab. I’ve just been tracking my activity in a notebook instead.

These are pretty minor inconveniences in what is an absolutely amazing exercise program and app. It inspires total commitment and maximum effort and makes a treadmill so fun! Since doing tread workouts somewhat consistently (even just once or twice a week) I’ve become a much stronger, faster (like 1 minute per mile faster), and smoother runner and had more fun with it. These workouts will make you feel bad*** and powerful in the face of some serious quarantine blues!

SheenaJean44 ,

Absolutely Recommend!!

I’ve been a runner for over twenty years and I have felt plenty confident in my self-motivation and ability to work out at home - so, in other words, I put off purchasing the app because I didn’t think I really needed it. But I found myself with an injury in March, and decided to give the app a try (needed SOMETHING, as I couldn’t run for a bit and pools were closed). I’m so glad I did! It has given new life to my strength workouts, and I recently started doing an audio-coached run once a week and am already seeing an improvement in my pace. I adore these girls and so appreciate their fantastic attitudes and everything they post. Thank you so much, Lauren and Kelly, for all the awesome work you put into this, and for being so motivating!!🙌❤️

App Privacy

The developer, Fit Radio LLC, 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 Used to Track You

The following data may be used to track you across apps and websites owned by other companies:

  • Usage Data

Data Linked to You

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

  • Health & Fitness
  • Location
  • Contact Info
  • Identifiers
  • Usage Data
  • Diagnostics

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

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