Train Smarter. Get Stronger. Run Faster.

Audio-guided workouts for women who want real results without spending hours in the gym.

Download on iPhone
Get it on Android

Fitness that Fits Your Life

Faster by SISSFiT is a workout app created by former Division 1 athletes and certified trainers Lauren & Kelly. Our workouts are built to help you get stronger, fitter, and faster — without spending hours in the gym.

Burn More In Less Time

  • Icon of an iron, a white household appliance with a handle and pointed front.

    HIIT Treadmill

    Fast-paced intervals that make cardio feel addictive.

  • A snowboarder in mid-air performing a trick against a blue sky.

    Outdoor Runs

    Guided runs that push your pace and build endurance.

  • A black and white minimalist illustration of a paper airplane

    Elliptical

    Sweat hard with less impact on your body.

  • Icon of a dumbbell on a black background

    Strength Training

    Quick, effective workouts for home or gym.

Two women jogging on treadmills in a gym. One wears a pink sports bra and white leggings, the other a white top and blue shorts.

Press play. We’ll coach the rest.

Just put in your earbuds and follow along as Lauren & Kelly coach you through energizing workouts designed to fit into busy schedules and deliver real results.

Screenshot of two smartphones displaying fitness app interfaces. The left screen shows the app's main menu with categories like featured programs, cardio workouts, and shorter workouts. The right screen shows a workout timer for a session titled "Accelerate w/ Kelly" in progress, with a woman running on a treadmill in the background.

Train Your Way

Choose from structured programs or jump into individual workouts whenever you need a quick sweat. Whether you’re following a program or fitting in movement during busy days, SISSFiT gives you the flexibility to stay consistent.

Meet Your Coaches

  • A young woman in running attire standing on a track field, holding a water bottle, smiling at the camera on a sunny day.

    Lauren Reid

    Former Division 1 athlete, certified trainer, and sports model passionate about helping women feel strong and confident. Lauren brings high-energy coaching and motivating workouts that push you to your next level.

  • A woman in athletic clothing sitting on a running track, tying her shoe with a pink water bottle beside her.

    Kelly Collins

    Former Division 1 athlete, certified personal trainer, and sports model known for creating efficient workouts that fit into real life. Kelly’s coaching style combines athletic training with a realistic, balanced approach to fitness.

Learn more

  • "I ended up shaving 4 min off my trial time. ...support with the women is something you can't find anywhere else.”

    —Deanna

  • “My secret weapon for dropping my race times. I set an awesome PR in my 5K and I'm really proud..."

    —Emily

  • “Was able to PR my 5K by 1.32 sec… Love the audio coaching and music...”

    —Samantha

Get started with Faster by SISSFiT Today

Download on iPhone
Get it on Android