Smarter. Smoother. Faster. Be The First To Try The New Dr. Muscle

Back in 2016, we set out on a mission: to build the world’s best workout app and help make the world a fitter place.

That journey led to the creation of the Dr. Muscle AI you know and love—the world's first AI personal trainer. A companion that has guided thousands along their fitness paths.

Now, nearly a decade later, we’re getting ready to take things to the next level.

In 2025, we’re thrilled to announce a brand new evolution in the Dr. Muscle experience—one designed to address your feedback, resolve past challenges, and deliver a faster, smoother, and even more reliable way to optimize every workout.

Introducing Dr. Muscle X

Our goal with this web app is to make the experience faster, smoother, and bug-free.

We know that we could have done a better job on those fronts for the mobile app, and this is our response to its shortcomings and the rightful criticism we've gotten.

Important: This is an Early Preview

Any workout you complete will not be saved. Our goal is to gather your feedback at this early stage of development.

Your input will directly shape the final product.

What's Available Now

We're focusing on perfecting the core workout experience:

• Lightning-fast performance: Save your first exercise in only ~4 seconds (down from ~10)
• Smooth transitions: Every interaction feels fast and responsive
• Modern interactions: Swipe left to skip a set—right to save
• Works everywhere: Access from any device with a modern browser (even your laptop)
• Zero crashes: Built from the ground up for stability

You may notice it's missing a number of features from the mobile app. That's expected at this stage.

When you start your workout, you'll be given the choice to use a UI that's similar to the mobile app or a brand new, more modern UI exclusive to the web app (pictured above).

Why We're Building This

The mobile app has served thousands of users well, but we've heard your feedback loud and clear. Performance issues, occasional crashes, and slow synchronization have held back the experience you deserve.

This web app isn't just a port—it's a complete rebuild using modern web technologies that deliver:

• 60% faster load times
• Rock-solid stability
• Bug-free training experience

What's Coming Next

This preview focuses on the workout experience, but we have ambitious plans:

• Offline mode
• An even faster workout experience
• And much more based on your feedback

Your Feedback Shapes Everything

As an early preview user, you're not just testing—you're co-creating. Every piece of feedback helps us build exactly what you need.

We're particularly interested in:

• Performance on your devices
• Any bugs or glitches you encounter
• Features you miss most from the mobile app

Join the Preview

Ready to experience the future of Dr. Muscle? We are inviting beta testers and select customers on a rolling basis. Email us to get in early.

Remember, this is just the beginning. With your help, we're building something truly special—a workout companion that's as fast and reliable as you are.

Be the first to know—sign up below for early access updates.