SLAY app by Mari Llewellyn!

Start your fitness transformation and slay your goals at home or at the gym, let's go!

Hi, I'm Mari!

Based on my own 90lb weight loss journey, we have successfully built a community with over 100,000 women who have conquered their health and fitness goals.

Starting today, you can get my best selling workout plan in the palm of your hands with the SLAY app. At home or at the gym; workout anywhere, anytime.

Workout Plans

Slay has workout plans to fit your schedule and ability. Choose your level and frequency, with over 500 unique workouts and instructional videos for each exercise. Whether you train at home or at the gym, Slay can help you make your goals a reality!


Tracking your progress is crucial for hitting your goals. Slay helps you track your strength progress and PRs, as well as physical progress throughout your journey!

Coach's Notes

Each exercise includes personal tips from Mari herself! These tips can help you nail your form, target a certain muscle, and more.


Slay is full of fitness knowledge. We provide tools such as an exercise glossary, terms dictionary, instructional videos, plus YouTube videos for extra tips on lifestyle and nutrition.

Our Mission With Like-Minded Women

As many of you know, Slay began as a workout PDF named “Mari Fitness.” The Mari Fitness plan was created based on Mari's own 90lb weight loss transformation. The Mari Fitness workouts helped to transform over 100,000 lives. We've taken our best selling workout plan, and turned it into an engaging, easy-to-use app. Join the community now!

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