A gym log that stays out of your way.
Gym Companion is an iPhone workout tracker for strength training: log sets fast, follow your routines, and see your personal bests grow. Here's everything it does.
Exercise library
Your exercises, grouped by muscle — chest, back, shoulders, arms, legs, glutes, core and calves. Each one shows your last and highest weight, so you know where you stand before you touch the bar.
- 94 exercises in the built-in catalog
- Add several at once from one list grouped by muscle
- Bodyweight and weighted exercises
- Custom exercises with Pro
Log a set in seconds
Two scroll wheels — weight and reps — and one button. Your previous set and your record are shown right above, so progressive overload is a glance, not a spreadsheet.
- kg, lb or bodyweight
- Optional automatic unit conversion
- Edit or swipe to delete a set
- Minutes instead of reps for timed exercises
Personal bests & 1RM progress
Every exercise has its own page with your personal best, last session and a progress chart. Switch between estimated 1-rep max, volume and max weight, over 1 month, 3 months or all time.
- Personal best: heaviest set, or most reps for bodyweight
- Estimated 1RM (Epley formula)
- Volume and max-weight trends
- Recent history by day
Workout history
Every session is saved automatically with start time, duration, number of exercises and sets, and — with Apple Health connected — estimated calories. An active workout stays pinned at the top.
- Automatic sessions — just start logging
- Duration and set count per workout
- Estimated active calories
- Live Activity on the Lock Screen
Stats & streaks
See which exercises you train most and how consistent you are. The free version shows your most popular exercises; Pro unlocks every chart.
- Most popular exercises — free
- Training streaks (Pro)
- Volume trends (Pro)
- Every chart unlocked with Pro
Frequently asked questions
Is Gym Companion a good gym log app for beginners?
Yes. You pick exercises from a built-in catalog of 94 exercises grouped by muscle, log weight and reps with two scroll wheels, and the app remembers your previous set so you know what to lift next time.
Does it support kg and lb?
Yes. Log in kg or lb, or mark a set as bodyweight. You can set a preferred unit and have weights converted automatically when you log.
Can I add my own exercises?
The full catalog is free. Custom exercises — with your own name, muscle group and bodyweight setting — are part of Gym Companion Pro.
How is the estimated 1-rep max calculated?
Gym Companion uses the Epley formula: weight × (1 + reps ÷ 30). Try it yourself with our free 1RM calculator.
Does my data sync between devices?
Yes. Workouts sync through your own iCloud account to every iPhone signed in with the same Apple ID — included for free.
Your next set starts here.
Download Gym Companion free and log your first workout today.
