Strength training, clearly recorded
JĀRN
iOS app
Log your workout. Keep your focus.
A focused strength training log for iPhone. Record your sets, find your exercises and keep your training history close.
116 exercises · Custom routines · Offline logging

Illustrations of the JĀRN interface. Final appearance may vary.
What it does.
Less to remember. More focus on your next set. JĀRN brings exercise logging, routines and training history together in a clear, native iPhone app. Choose from 116 built-in exercises or add your own. Find a movement through search, favorites or the muscle map. Record weights, reps and sets with quick entry, or adjust each set individually. Your previous performance stays close when you log. Review your saved results and progress over time, whether you follow a routine or start a free workout. Core workout logging works offline.
Designed with intent.
- Quick logging — record weight, reps and sets, with individual set adjustments when you need them.
- 116 built-in exercises — browse photographs, search by name or explore the muscle map.
- Your own exercise library — add custom exercises and keep favorites within reach.
- Different ways to train — support for weighted, bodyweight, timed and assisted exercises.
- Routines and free workouts — follow a plan or choose exercises as you go.
- History and progress — review your saved results and follow changes over time.
- Offline logging — save your training on your iPhone, including when the gym has no signal.
- Make it comfortable — English and Swedish, kilograms and pounds, light and dark appearance.




