M3 · Muscle Medicine Matters
That is the one goal behind M3: one program, built on cascading-failure exercises and adapted to you, with every session laid out set by set.
No card. Metric or imperial. Delete it all in one click.
Who it is for
Pain or posture problems, getting older, or simply building muscle: it is the same program, adjusted to you with a short safety check, a measured starting point and a daily check-in.
A five-minute assessment with your phone propped up measures how you stand, reach, balance and get up, and your program starts from there.
Tell us about any pain and your energy before each session. We swap in easier exercises, trim sets or shorten the day, and say what we changed.
On supported exercises the camera watches your form and speaks up when something is off.
Re-take the same tests every four weeks and see the change, in the app and as a report you can show your doctor or physiotherapist.
What makes M3 different
We don't have many programs to confuse you. We have a single program, and it adapts to each user.
One program, built on cascading-failure exercises, with one goal: muscle mass in the shortest possible time.
Beginners go through fewer exercises than advanced lifters, so each session fits where you are today.
One program that changes based on the results of our research, so everyone benefits when we learn something new.
The same program is relevant for all of them, wherever they start, and for people with pain or posture problems and older adults too.
No levels to pick and no quiz to take: tell us where you are and the program meets you there.
Personalized by AI
Your program is sized to you when you start. Then, every week, the M3 Coach (AI) looks at the sets you logged, how hard they felt and your form checks, and suggests up to 3 changes. You accept or skip each one: nothing changes unless you say yes.
Every week the M3 Coach looks at what you actually did and suggests up to 3 changes to your program.
More weight or reps, a set or rest time adjusted, the next exercises added, or one exercise swapped for another.
Accept or skip each suggestion, and undo an accepted one until your next review. Changes apply from your next session.
The AI also gives feedback on the sets you record, and you can ask the M3 Coach anything in the chat.
It works the same for beginners, advanced lifters and athletes, and for people with pain or posture problems and older adults, who start after a quick safety check.
This is how your program grows with you, one approved change at a time.
Who it's for
M3 is the same program for beginners, advanced lifters and athletes. Tell us how long you have been training, and the program is sized to you.
Beginners start with fewer exercises each session; as you get stronger, you can add the rest from your program.
It is also for people with pain or posture problems and for older adults: the same program, adapted safely. A quick safety check comes first, and you can start with fewer exercises each session. Checking in on how you feel each day, with easier versions of exercises, is coming next.
How we measure progress
FFMI, the Fat-Free Mass Index, relates your lean mass to your height, so it shows the muscle you gain instead of just a number on the scale. Log your weight and body fat and M3 charts it over time.
Track your FFMI over timeA rough estimate is fine here. Common ways to estimate body fat include skinfold calipers, a smart scale that uses bioelectrical impedance, a tape-measure method such as the U.S. Navy formula, or a DEXA scan at a clinic. FFMI is meant as a general reference point, not a precise measurement.
M3 in 30 seconds
The method, a program built around you and your AI coach, in half a minute.
Muscle is medicine. At M3, we train muscle the way medicine is dosed: precisely, in sequence, and for a purpose. Because more muscle is linked to better blood sugar, a healthier heart, and a longer life. Your program is built around you, and it grows with you. Every day ends with a cascading-failure chain that finds your weak links. And your AI coach knows your program, your week, and your records. Just ask. M3. Muscle Medicine Matters. Start your program today, free.
The program
Built on cascading-failure exercises: each day ends with a chain taken to failure, so the load passes from one muscle to the next. The whole week is planned in advance, so you never have to guess what comes next.
Beginners, advanced lifters, athletes, people with pain or posture problems and older adults: the program meets you where you are.
Start here
Getting started
A few questions about your training so far, and M3 sizes your program to you.
Start it with one tap, and your next session is waiting on your Today screen.
Every exercise comes with its sets, reps, effort and rest. Do the work, log it, move on.
Muscle is your body's largest metabolic organ, and building it is linked to better long-term health.
Muscle absorbs most of the glucose you eat, so more muscle supports better insulin sensitivity and blood sugar control.
Resistance training is linked to improved blood pressure, cholesterol and waist circumference.
Loading supports bone density and is linked to less pain in knee osteoarthritis and chronic low back pain.
Strength training is associated with meaningful reductions in symptoms of depression and anxiety.
Maintaining muscle is linked to a lower risk of sarcopenia, falls and frailty as you get older.
Higher muscle mass and strength are consistently associated with lower all-cause mortality.
M3 is a training platform, not medical care. Talk to your doctor before starting a new exercise program if you have a health condition.
Install
M3 installs from your browser like an app: its own icon, no browser bar, and the shell loads instantly on gym Wi-Fi.