Log sets.
Beat records.
Stay consistent.
The free workout log for iPhone and Android. Build your workouts, log your sets and track your progress, workout after workout.
The app in detail
Four screens to plan, log and analyse your training.
Home
Your workouts,
ready to go
The home screen shows your progress for the week and lets you start your next workout in one tap. No menus to dig through, no setup before you start.
- ✓ Weekly goal and training streak
- ✓ Your workout templates, organised in folders
- ✓ Free workout when you want to improvise
During the workout
Log your sets
without breaking your flow
Your previous performance is shown for every set. You see straight away what you did last time, and logging your new set takes one tap.
- ✓ Previous performance shown on every set
- ✓ Rest timer starts automatically when you log a set
- ✓ Warm-up, drop and failure sets tracked separately
Exercise
Track your progress,
exercise by exercise
Find everything in one place: exercise instructions, workout history, personal records, estimated 1RM, and how your weights have progressed over time.
- ✓ Load, volume and rep records
- ✓ Estimated 1RM, based on your performances
- ✓ Progress charts over 30 days, 3 months, 1 year or all time
Progress
Your training month
at a glance
See your workouts, volume, training time and records for the month, with the differences from the previous month.
- ✓ Sessions, total volume and time spent
- ✓ Automatic comparison with the previous month
- ✓ Every personal record
Much more than a workout log
Apple Watch, AI analyses, programs, muscle tracking, offline mode… Musku goes further than just logging your sets.
Native Apple Watch app
Log your sets right from your wrist, without pulling out your phone.
AI analysis
Export a structured summary of your training and analyze it with the AI of your choice.
Ready-to-use programs
Import a program or organise your own workouts.
Lock screen rest timer, offline mode, iPhone widget, body measurements, Health sync, muscle distribution, share card… and plenty more.
See all features
Pricing
Simple and honest.
Start free. Go Premium when you're ready.
- ✓ Unlimited workout tracking
- ✓ Full exercise library
- ✓ Workout history
- ✓ Up to 3 workout templates
- ✓ Access to a selection of ready-to-use programs
- ✓ Everything in Free
- ✓ Unlimited workout templates
- ✓ All statistics and progress charts
- ✓ AI analyses of your progress and your program
- ✓ Access to all ready-to-use programs
- ✓ Priority support
App Store reviews
What users say
Reviews left spontaneously on the App Store.
Your program in a few taps
Excellent training app! Musku is smooth, simple to use and really handy for tracking my workouts day to day. I love how motivating it is, the clean interface, and how easy it is to build your own training plans.
Finally an app that motivates me
Finally a lifting app that makes you want to get started! The interface is super clear, you log a session in two seconds, and the progress charts are so satisfying to look at. Highly recommend!
Efficient and simple
Very handy app for organising and tracking your lifting sessions. You can build your own programs easily. There is a huge number of exercises available, and it is simple and intuitive to pick up.
Excellent app
Really good app, very intuitive. If you are after something complete with a nice design, go for it, you will not be disappointed.
Rated 5 out of 5 on the French App Store, from 4 ratings. Reviews translated from French.
Frequently asked questions
Is Musku free? +
Yes. The essentials are free, with no time limit and no ads: unlimited workouts, the full exercise library, records, rest timer, Apple Watch and offline mode. The optional Premium subscription adds unlimited workout templates (3 on the free plan), every ready-to-use program, the full statistics with progress charts, and AI analyses. It also helps support Musku’s development.
How much does Premium cost? +
Premium is available yearly or monthly, with no commitment: see the prices in the Pricing section. You can cancel anytime from the App Store or Google Play and keep Premium until the end of the period you paid for. If your subscription ends, nothing is deleted: you simply go back to the limits of the free version.
Which devices does Musku work on? +
Musku runs on iPhone and Android, and comes with its own Apple Watch app: start your workout and log your sets on your wrist, without taking out your iPhone. Your account syncs your workouts across your devices.
Does Musku work offline? +
Yes. Your workouts are saved locally and synced automatically when you’re back online. You can train without an internet connection.
I'm a beginner, is Musku for me? +
Yes. You can start from a ready-made program, such as the Beginner Full Body, then adapt it to your gym. During your workout, Musku shows what you did last time and starts the rest timer automatically: you focus on your set. Our guide to building your first program helps you get started.
Can I create my own exercises and programs? +
Yes. The library holds 1,000+ exercises, and you can add your own in seconds. Save your workouts as templates, group them into folders by program, and chain exercises in supersets. The free version lets you save three templates; Premium removes that limit.
Does Musku use kilos or pounds? +
Kilograms and centimeters. Pounds and inches aren't available yet.
I'm changing phones, do I keep my data? +
Yes. Your workouts and data are tied to your Musku account: sign in on your new phone and they're all there, Premium included, even when switching from iPhone to Android or back.
What about Apple Health and Health Connect? +
Musku can save your workouts to Apple Health on iPhone or Health Connect on Android. You can also sync your weight and body fat both ways; imported measurements are saved to your Musku account, just like those you enter in the app. Sync is entirely optional and is controlled from the app’s settings. More about Health sync
Can I delete my account and data? +
Yes. You can delete your account and your personal data directly from the app’s settings. Deletion takes effect immediately. What is deleted, what is kept
Who's behind Musku? +
Musku is built by an independent French developer. No investors, no ad networks: just an app dedicated to strength training.
The blog
Guides on training, progress and getting the most out of Musku.
Kettlebells in Strength Training: What They Offer, and Where They Fall Short
Kettlebells shine for hip work and conditioning, far less for load progression. The exercises worth knowing and how to fit them in.
Read October 26, 2026How to Read a Training Programme
3x8-12, RIR 2, 3010 tempo, 75 %, A1/A2: programme notation explained one item at a time, with examples and the most common misreadings.
Read October 26, 2026Group Classes or Free Training: What Each One Gives You
Do barbell group classes build muscle? What they genuinely develop, their limits for strength, and how to combine them with free training.
Read October 23, 2026Feeling the Muscle Work: Useful, but Not Everywhere
Focusing on the muscle raises its activation but can lower the load you lift. Where to use it, where to drop it, and how to build it.
Read October 22, 2026Music and Lifting: What It Actually Changes
Music makes effort feel easier without working miracles on your loads. What the research shows, when it helps and when it gets in the way.
Read October 21, 2026What to Do on Rest Days
A rest day is neither a lost day nor one to fill. What genuinely helps recovery, what does nothing, and what gets in the way of your next session.
ReadThe simplest way
to stay consistent at the gym.
Free. No ads. Available on iPhone and Android.
iOS 15 or later · Android 8 or later