First Look: Dr. Muscle X New Features & Improvements
Train faster, track smarter, lift anywhere
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Dr. Muscle: The AI Workout App With 27+ Features You Won't Find Anywhere Else
Built by an exercise scientist, updated 50+ times per year—from progressive overload to daily undulating periodization, here's what makes Dr. Muscle the smartest trainer you'll ever have
Smarter. Smoother. Faster. Be The First To Try The New Dr. Muscle
Meet Dr. Muscle X: The Future of AI Personal Training. Early Preview Now Open.
Smart Training. Simplified. Dr. Muscle Coming to Apple Watch.
Power meets simplicity. Innovation meets iron. Right on your wrist.
A Smarter, Better Way To Build Muscle: The Dr. Muscle Manifesto
No hype, no gimmick—just science-backed workouts that grow with you using AI
MacroFactor App Review 2025 by Independent Expert—Results, Price & More [In-Depth]
An honest look at MacroFactor and results from 9 users of the app: is it worth it in 2025?
Latest articles
Overtraining protection
Dr. Muscle now protects you from overtraining with smart triggers when you work out too often or take time off. Learn more: Overtraining: is It Real? How a Cardiologist and His Son Learned the Hard Way.
Overtraining: Is It Real? How a Cardiologist and His Son Learned the Hard Way
Some people say overtraining is a myth. But according to a NY Times article, it’s very real. Dr. William Kraus, a cardiologist, and his son learned it the hard way. The Times reports: UNTIL last spring, running was going great for 15-year-old Erik Kraus. He had been training hard
1-on-1 chat with support
You can now 1-on-1 chat with support inside the app.
Featured programs
You can now access featured programs inside Dr. Muscle. Those include 2 arm specialization programs and (coming soon) programs from well-known trainers around the Web.
Big Arms: How to Get Arms Like Arnold Schwarzenegger
Arnold Schwarzenegger had massive arms, 22 inches big at his peak. In his book The New Encyclopedia of Modern Bodybuilding, he explains how you, too, can get big arms. One of his secrets is to train them “by themselves when you are rested and strong” or “on leg days when
Top 5 sources of muscle science for nutrition, hypertrophy, and strength
I once heard that “Science is the only news” (I think it was Peter Attia, on a podcast). I’m not sure it’s the only news, but keeping current on “muscle science” sure gives you an edge when it comes to getting lean, fit, muscular, and strong. And with
Dr. Muscle is trending on Kickstarter—thanks for your amazing support!
Dr. Muscle is trending in first place in apps on Kickstarter! Thanks for your amazing support (this took us months to get ready). In the comments, backer Nicholas Bundock said: Markus (another new customer) emailed in: “Dr. Muscle is really like a personal trainer. It changes every training and makes
Group chat
You can now chat with the team and other smart, serious lifters like yourself inside the app.
Plate calculator: no more plate math
Stop doing plate math! You'll find a shiny new plate calculator (with adjustable bar weight) the next time you do your sets.
Customize at the exercise level
You can now customize reps, sets, and increments at the exercise level. For example: deadlift for 5 reps using normal sets and biceps curl for 10-15 reps using rest-pause sets.