Workout tracker
Log your workouts and track muscle recovery.
Track sets, reps, weight, and rest. Review your workout history and see which muscles are ready to train.
Basic is free. Pro starts at $2.99/month.
Overview
Start quickly
Choose a built-in template and begin logging.
Use your own workouts
Create templates for your usual training days with Pro.
Check muscle recovery
See which muscles are ready and which are still recovering.
Features
The main parts of MuscleOS.
Workouts
Start with a built-in Push Pull Legs or Strong Lifts 5×5 workout. Enter your weight and reps, complete each set, and use the rest timer between sets.
Exercises
Search the exercise library by name, muscle, or equipment. Tap an exercise to see instructions and the muscles it works.
Recovery
Recovery updates after each saved workout. The body map shows which muscles are ready and which are still recovering.
History
See your saved workouts, including duration, volume, exercises, and sets. Pro adds personal records, progression charts, and a monthly calendar.
Small app. Low storage use.
≈32 MB
App size
1–2 MB
Typical workout data
$0
Basic plan
Pricing
Basic includes workout logging, built-in programs, Recovery, and History. Pro adds custom workouts and progress tools.
Basic
Free
No time limit
Includes:
Recommended
Pro
$19.99/yr
or $2.99/month
Everything in Basic, plus:
Getting started
Get MuscleOS on iPhone or Android.
Start a built-in template or create your own with Pro.
Enter your weight and reps, then save the workout.
Use Basic for free. Upgrade to Pro for custom workouts and progress tracking.
FAQ
Simple instructions for the main parts of the app.
Start a workout
Check recovery
Find exercises
View past workouts
Open the Workouts tab. Tap a template to start it, or tap Empty workout to add exercises as you go.
Enter the weight and reps for each set, then tap the checkmark when the set is done. The rest timer starts automatically.
You can change the exercise list while the workout is running.
Editing the exercise list during a workout requires Pro.
Tap Finish in the top-right. Review the summary, then tap Save values.
If you changed the workout, you can also update the template or save it as a new template. These options require Pro.
To cancel instead, scroll to the bottom and tap Cancel workout.
On the Workouts tab, tap + New. Give the template a name, add exercises, and choose the number of sets.
You can also save a finished workout as a new template.
Creating templates requires Pro.
Recovery updates after you save a workout. It shows which muscles are ready and which are still recovering.
The Workouts tab also suggests templates based on the muscles that are ready.
Recovery and workout suggestions are included with Basic.
Open the History tab. Tap a workout to see its exercises, sets, duration, and total volume.
Open the Exercises tab. Search by name or filter by muscle and equipment. Tap an exercise to see its instructions and muscle map.
On the Workouts tab, tap the three dots on the template and choose Hide. Use the same menu to show it again.
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