Estimated strength · Barbell back squat8 months
157.5kg
+7.5 kg since February
Training tracker
Log it in seconds.Measure it for real.
One tap per set and you keep training. Volume, PRs and estimated strength are Myosin's job, not yours.
Actually free · iOS and Android · No ads
- 340exercises, every one with a guide
- 100%of your data, on your phone
- 0ads, no banners and no videos
Training is hard enough.Logging it shouldn't be.
Log
One tapper set.
Myosin already knows what you lifted last time. Open the routine and the weight and reps are filled in: tap the check and the set is saved. No keyboard, no searching, no breaking your rhythm between sets.
The rest timer starts on its own. Change the weight and the plate calculator tells you what to load on the bar.
- Rest timer
- Plate calculator
- RPE
- Automatic warm-up sets
Structure
The structureyou actually train with.
Supersets, circuits and HIIT, with drop sets, cluster sets or rest-pause sets. The real structures you train with, not a flat list of exercises.
Plan your week, save your routines, and reorder blocks mid-workout when the gym is packed.
- Supersets
- Circuits
- HIIT
- Drop sets
And when the clock is in charge, the Circuit.
You build the recipe for one round and choose how it ends. The clock takes the whole screen and is readable from the floor: the color tells you the phase and the level tells you how much is left, before you read a number.
Your score is only compared against the same recipe. As you go, you see whether you're ahead of your best.
- AMRAPThe minutes run and you count rounds.
- For TimeThe rounds, as fast as you can.
- EMOMFixed-length windows: your rest is whatever is left of each one.
The summit
When you finish,your session draws itself.
Every set is a point on the ridge, in the order you did it. If you set a record, it's a gold peak right on the set where it happened, with the number on top. If not, whatever went up is written over its stretch.
Every session draws a different ridge, so an ordinary day still has something big that's yours. And a deload is a low, calm ridge: going easy was the plan.
And it shares as cards.
Tap Share and the session comes out as a carousel: the record, the summary with the numbers in large type, and the muscles you worked.
For stories, My photo puts the Myosin badge on top of your photo, like a sticker you can move and resize.
Measure
PRs are caughton their own.
You don't log a record by hand or try to remember one. Every time you beat a mark, Myosin catches it and shows you right then.
Sets by muscle groupthis week
Recent PRs
- Barbell bench press100 kg × 5
- Barbell back squat140 kg × 5
- Pull-up+12.5 kg
Records in 10 categoriesnot just strength
- Heaviest weight
- Best e1RM
- Most reps
- Most weight lifted in a set
- Longest duration
- Longest distance
- Best pace
- Lowest assistance
- Most total work
- Most accumulated tension
Each category is measured against your own history on that exercise: load, time, distance or assistance, depending on how it's logged.
Your weekagainst your last 4 weeks
So far: 3 workouts and 3 activities.
Load
Heavier than your last 4 weeks.
Volume by muscle
Back: 14 sets this week, 4-week average 13
Chest: 12 sets this week, 4-week average 10
Quads: 9 sets this week, 4-week average 11
Shoulders: 8 sets this week, 4-week average 8
Weekly sets · only what you actually did. The mark is your average over the last 4 weeks.
Habits
What keepsthe progress going.
Elastic habits, guilt-free. Missing a day doesn't erase what you've kept up: Consistency measures the trend, and the milestones you earned stay. You pick what to track and how often: sleep, food, training.
Your plan, in one sentence
After training, I take creatine.
Every habit hangs on something you already do. You check it with one tap, count it in amounts —«6 of 8 glasses»— or in levels, from the minimum to the full day.
ConsistencyCreatine
Consistent72/100
It's the part of your plan you've been keeping, and recent days weigh more. It isn't a streak: one off day doesn't wipe it out.
100 times. A milestone, in gold.
Milestones mark what you kept up: weeks, times, comebacks. You earn each one once, and it stays.
SkipIt counts neither for nor against you.
PauseThe habit waits until you're back.
RestTraveling or sick: nothing counts against you.
Calisthenics progressions
And guided calisthenics progressions: each step unlocks the next when you're ready, from your first pull-up to the muscle-up.
Pull-ups4 of 6
- Negatives
- Assisted
- First pull-up
- Weighted pull-ups
- Muscle-up negative
- Muscle-up
Activities
What you do outside the gymcounts too.
Football, padel, running, a yoga class. You log the minutes, the effort and, when it applies, the distance. All of it adds to your week's load, together with your strength work.
This week3 activities
- yesterday
Football
- Wed
Padel
- Mon
Running
Time trainedthis week
Strength2 h 58
Conditioning25 min
Activities3 h 12
Load
Heavier than your last 4 weeks.
Load is duration times effort, for a workout and for an activity alike. The band marks your usual: 80% to 120% of your average over the previous 4 weeks.
Outside the app
Myosin,wherever you are.
On your home screen, on your computer and in your AI assistant: the same data as the app, as soon as it syncs.
Widgets and Control Center
Check off a habit from the home screen widget, on iPhone and on Android, or from Control Center on iOS 18, without opening the app. On iPhone, the workout in progress stays on your lock screen.
On your computer
Your routines, your history, your exercises and your habits, on a big screen. Sign in with your account: email, Google, Apple or a passkey.
Go to the web appConnect your AI
Claude, ChatGPT, Cursor or any MCP-compatible assistant reads your data and answers with it. If you allow it, it can also build you a routine. Revoke it whenever you want.
- Claude
- ChatGPT
- Cursor
- Any MCP client
Free
All of it. Free.No ads.
There's no paid plan. No locked features. No ads. And no limit waiting for you at routine number five.
Noroutine limit
Build as many as you want, all of them complete.
Nocustom exercise limit
That odd machine at the new gym goes in too.
Notrimmed history
Charts go back to your first session, not to three months ago.
Noads
No banners, no interstitials, no «watch this video to continue».
Nocard
We don't ask for payment details. The account is free and it's there to sync across your devices.
Noreserved features
Habits and calisthenics are included. There's no real version waiting behind a paywall.
Straightanswers.
Is Myosin free?
Yes. Today there's no paid plan, no locked features, no limit on routines or custom exercises, and no ads. We don't ask for payment details.
Does it work offline?
Yes. Your data lives on your phone: you can train, log sets, build routines and check your progress in airplane mode. When you're back online, it syncs on its own. What does need internet is anything that goes through the cloud, for example: creating your account or signing in again —that's when your data comes down—, sharing a routine by link, the web version, your connected AI and the image of an exercise you haven't seen yet.
Is it on iPhone and Android?
Both. It's on the App Store and Google Play, and your account syncs across devices.
How is it different from other training apps?
Three things. It supports the real structure you train with —supersets, circuits with a clock, HIIT, drop sets— not a flat list of exercises. It adds habits, activities and calisthenics progressions in the same app. And there are no reserved features: what you see is all there is.
Can I build supersets, circuits and HIIT?
Yes. Myosin organises training into blocks: individual, superset, Circuit and HIIT. A Circuit is the recipe for one round, and it ends as an AMRAP (the minutes run and you count rounds), a For Time (the rounds, as fast as you can) or an EMOM (fixed-length windows), with its own full-screen clock. It also supports drop sets, automatic warm-up sets and RPE.
How do habits work?
Every habit is a plan in one sentence: what you do it after, and how much. You check it with one tap, by amount —glasses, grams— or by level. You can skip a day, pause it or take a rest without it counting against you. Consistency measures how much of the plan you've been keeping, and recent days weigh more: one off day doesn't wipe it out. Streak milestones count strong weeks —or months— in a row and, once earned, they stay even if you ease off later. The only habit that counts days in a row is one for quitting something: it adds up clean days, and a slip starts the count over.
How many exercises are there, and do they come with guides?
The catalogue has 340 exercises and every one comes with an execution guide and common mistakes, in English and Spanish. They're classified by 97 movement patterns, 31 muscle groups and 31 equipment types. You can also create your own, with no limit.
What is estimated 1RM and how is it calculated?
It's an estimate of how much you could lift once, worked out from the weight and reps you actually did. Myosin calculates it per exercise on every set and builds the curve over time, so you can see whether you're progressing without ever attempting a true max.
Can I connect Myosin to my AI?
Yes. In Claude, ChatGPT, Cursor or any MCP-compatible assistant, add the address mcp.getmyosin.com, sign in with your Myosin account and approve the access. It can read your training, your habits and your activities to answer with your data; it can create or edit routines only if you allow it. Revoke it whenever you want from «AI connections» in the app. How to connect it.
Is there a version for my computer?
Yes, for looking: at getmyosin.com/app you sign in with your account —email, Google, Apple or a passkey— and see your routines, your history, your exercises and your habits. To train and log, the app.
Is my data mine?
Yes. Your data lives on your phone; the cloud is backup and sync across your devices, not the original. You can delete your account from the app and everything goes with it.
Actually free
Start today.Measure everything.
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