First Look: Dr. Muscle X New Features & Improvements
Train faster, track smarter, lift anywhere
Train faster, track smarter, lift anywhere
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
Meet Dr. Muscle X: The Future of AI Personal Training. Early Preview Now Open.
Power meets simplicity. Innovation meets iron. Right on your wrist.
No hype, no gimmick—just science-backed workouts that grow with you using AI
An honest look at MacroFactor and results from 9 users of the app: is it worth it in 2025?
Full release notes (iOS version 4.2605.0400 / Android 2052050400) * Fixed: Rest recommendation between workouts * Fixed: Rest timer between exercises * Fixed: Custom workouts/exercises not showing up in rare cases * Fixed: 9 crashes in rare cases
Full release notes (iOS version 4.2604.2712 / Android 2052042712) * Improved: Progress stats for cardio exercises * Fixed: Cannot create custom exercises * Fixed: Weights shown instead of band colors in rare cases * Fixed: 1 crash in rare cases
Full release notes (iOS version 4.2604.2030 / Android 2052042030) * Fixed: Countdown timer disappeared * Fixed: 1 crash in rare cases
Full release notes (iOS version 4.2604.1309 / Android 2052041309) * Fixed: Equipment for advanced exercises (e.g. 2-Sec Pause Bench Press) * Fixed: Expired subscription reactivated unexpectedly in rare cases * Fixed: Same-resistance bands of different colors removed unexpectedly
Full release notes (iOS version 4.2604.0645 / Android 2052040645) * Fixed: Active subscription not recognized in rare cases * Fixed: Workout skipped when skipping mobility warm-up * Fixed: Weights outside dumbbell equipment * Fixed: Cannot edit custom equipment in rare cases * Fixed: Reps outside range in rare cases * Fixed: AI chat does not
Full release notes (iOS version 4.2603.1340 / Android 2052031340) * Fixed: AI chat (workout history, recent 1RMs, and more) * Fixed: Custom challenges and deloads * Fixed: Edit workout (moving an exercise up reorders the exercises under it) * Fixed: 4 crashes
Full release notes (iOS version 4.2603.0218 / Android 2052030218) * Fixed: Cannot edit equipment in rare cases * Fixed: Incorrect rest times in rare cases * Fixed: 5 crashes
Full release notes (iOS version 4.2602.2008 / Android 2052022008) * Fixed: 5 crashes in rare cases Coming soon * Web app
Full release notes (iOS version 4.2602.1848 / Android 2052021848) * Improved: Video instructions for Seated Cable Row * Improved: Video instructions for Machine Reverse Fly * Fixed: Reps countdown playing through phone speaker and headphones * Fixed: Exercise-level settings * Fixed: First custom workout skipped * Fixed: Cannot skip workout * Fixed: Account creation reset in
Full release notes (iOS version 4.2602.0823 / Android 2052020823) * Improved: Handling of custom increments and plates when using low weights * Fixed: No max reps on first-time exercise setup * Fixed: No access to free plan in rare cases * Fixed: Cannot edit custom exercises in rare cases * Fixed: 8 crashes in