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.

One tap
per 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 timerPlate calculatorRPEAutomatic warm-up sets

The structure
you actually train with.

Supersets, circuits, HIIT, drop sets, pyramids. 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.

SupersetsCircuitsHIITDrop sets

PRs are caught
on 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.

ESTIMATED STRENGTH · BENCH PRESS6 MONTHS

102.5 kg

+7.5 kg since January

JanFebMarAprMayJun

VOLUME BY MUSCLE GROUPTHIS WEEK

Chest8,240 kg

Back6,710 kg

Legs6,005 kg

Shoulders4,700 kg

Arms4,010 kg

Core2,820 kg

RECENT PRSBench press102.5 kgSquat140 kgPull-ups+12.5 kg

What keeps
the progress going.

Train 4×/week5/7 this week

Elastic habits, no streaks to break. 5 out of 7 is already a great week. You pick what to track and how often —sleep, food, training— and the app doesn't punish you for an off day.

PROGRESSION · PULL-UPS4 OF 6

Negativesdone
Assisteddone
First pull-updone
Weighted pull-upsyou're here
Muscle-up negative
Muscle-up

And guided calisthenics progressions: each step unlocks the next when you're ready, from your first pull-up to the muscle-up.

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 limitBuild as many as you want, all of them complete.
Nocustom exercise limitThat odd machine at the new gym goes in too.
Notrimmed historyCharts go back to your first session, not to three months ago.
NoadsNo banners, no interstitials, no «watch this video to continue».
NocardWe don't ask for payment details. The account is free and it's there to sync across your devices.
Noreserved featuresHabits and calisthenics are included. There's no real version waiting behind a paywall.

Straight
answers.

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 and the app works fully without a connection: you can train, log sets and check your progress in airplane mode. When you're back online, it syncs on its own. The only thing that needs a connection is creating your account the first time.

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, HIIT, drop sets— not a flat list of exercises. It adds habits and calisthenics progressions in the same app. And there are no reserved features: what you see is all there is.

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.

Can I build supersets, circuits and HIIT?

Yes. Myosin organises training into blocks: individual, superset, circuit and HIIT, with per-block timers. It also supports drop sets, automatic warm-up sets and RPE.

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.

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.