Runs and rides with GPS
Pace, distance and splits, with a Live Activity on the Lock Screen. Workouts from other apps in Apple Health fill in planned cardio days on their own.
Free on iPhone and Apple Watch
Know what
today needs.
Kobu plans your week, logs every set and reads your recovery, so each session starts with a clear call. Strength, running, HYROX and your sport, in one place.
- 2,130exercises
- Noaccount needed
- Noads, ever
Kobu's call
One line that reads your whole week.
Kobu weighs your heart rate variability and resting heart rate from Apple Health, your training load and the muscles still recovering. Then it says it plainly: push, go lighter, or rest.
Not feeling it? Ask Kobu to go lighter and it trims today's session for you. It never changes your plan without asking.
Plan
A plan that bends without breaking.
Build a routine, run a programme week by week, or just type what you want: "push, pull and legs, four days". Kobu drafts it, fitted to the kit you own.
- Progression that thinks. Linear, double and triple progression, Greyskull, 5/3/1 waves or Adaptive. Kobu sets the next target and shows why.
- Your bar, your plates. Tell Kobu what's in your gym and every weight it suggests is one you can load, with the plates drawn for you.
- Life happens. Move Tuesday's session to today and the week keeps its shape. Undo is always one tap away.
- Your sport counts. Log practice for track, swimming, rowing, cycling or your team sport beside the gym, and Kobu counts it in your week.
In the session
Built for the middle of a set.
Big targets, last time's numbers beside every set, and a rest timer that flashes the screen and lowers your music when it's time to go.
- Supersets
- Drop sets
- Rest-pause
- Timed holds
- Per-side reps
- Pyramids
- Warm-up ramps
- Assisted machines
- Weighted bodyweight
- RPE and RIR
2,130 exercises with step-by-step instructions, a quick swap to anything that hits the same muscle, and your own custom moves with a photo or clip. The screen stays awake, and a Live Activity keeps your rest on the Lock Screen.
Apple Watch
Leave the phone in your bag.
Start today's workout from your wrist, log each set with the Digital Crown, and watch your heart rate and rest time between sets.
Lift, run, race
One week, every kind of work.
Kobu counts runs, rides and rows in the same training load as your lifting, so the call it makes is about all of you.
HYROX, station by station
Run full race simulations and see your best total and your best split for every station, so you know where the time goes.
Your sport's own days
Log a practice in a few taps. Sport programmes for track, swimming and rowing build the gym week around it.
Progress
Progress you can read at a glance.
Weekly volume, sessions against your goal, a year of consistency on one heatmap, and every personal record the moment you set it.
- Estimated 1RM, your formula. Epley, Brzycki and more, with a line for every set so you can see the top set and the back-offs move.
- Strength balance. Your lifts compared with each other, so a lagging pull or a weak hinge shows up early.
- Muscles, not just lifts. A body map of hard sets per muscle, what's recovered and what you haven't trained.
- Effort. RPE or RIR on any set, and a trend that shows whether the work is getting easier.
Health
Food, without the homework.
Scan a barcode or search, and Kobu tracks calories, protein, carbs and fat against your targets, meal by meal.
- Body weight with a goal. Weigh in and see the trend against the weight you're aiming for.
- Progress photos that stay put. They never leave your iPhone, and Kobu strips their location before saving them.
Your data
Your training stays yours.
No account, no ads and no tracking. Your workouts, food and photos live on your iPhone.
Bring your history
Import from Hevy, Strong and FitNotes, then match any exercise name Kobu doesn't recognise in a few taps.
Backed up every day
Kobu backs up on its own and keeps the newest 14. One file restores everything, photos included.
Take it anywhere
Export a session to Garmin, copy it as text, or share a routine as a clean PDF.
Apple Health data is used only inside Kobu, never for advertising. Read the privacy policy
For coaches Invite only
Coach your clients in Kobu.
Write their plan, see every session they choose to share, run weekly check-ins and book in-person sessions, from your phone or a full dashboard on the web.
Support
Questions, answered.
Something not right, or an idea for Kobu? Write to us and a person reads it.
[email protected]Is Kobu free?
Yes. Every feature in Kobu today is free, with no subscription and no ads.
Do I need an account?
No. Open the app and start training. Your data stays on your iPhone.
Is my data synced to iCloud?
Not yet. Kobu keeps your data on your device and makes automatic backups you can save or move to a new phone yourself.
Does Kobu work with Apple Health?
Yes, if you allow it. Kobu saves your sessions to Apple Health, can bring in workouts recorded by other apps, and reads heart rate variability and resting heart rate for its readiness call.
Can I bring my history from another app?
Yes. Kobu imports CSV exports from Hevy, Strong and FitNotes, and Hevy history directly with your Hevy API key.
Kilograms or pounds?
Both. Switch at any time in Preferences and your whole history shows in the new unit.