It measures the bag, not your hand.
The bag is what takes the hit; a wrist sensor only infers it. Your phone rides on the bag and reads the strike itself.
Muay thai · On your heavy bag
Turn any heavy bag into a coach that measures.
Kai Muay calls the class, counts and measures every strike — punches, kicks, knees and elbows — and tells you whether you passed. Your phone on the bag. Nothing to buy.
Coming soon on Google PlayAndroid · Free to start
Three things
Real muay thai.
43 techniques, 25 classes, kicks and knees measured, the Thai names. A practitioner’s syllabus, not a workout generator.
Nothing to buy.
The phone you already have, or the old one in the drawer. No sensors, no hardware subscription.
How it works
Mount the phone on the bag
above where you hit, in a case or a strap. The sensors do the rest.
Pick the class
and the coach’s voice calls every round: the combo, the pace, the rest.
Hit
and every strike is counted and measured. At the end, the class tells you if you passed.
What it does
The Path
A whole class, not loose rounds.
Twenty-six classes in four levels, from the stance to the elbow. The coach’s voice takes you from the warm-up to the final circuit: the technique, the bag with a script, the bag on your own, the conditioning. Pass one, the next one opens.
- 26 classes
- 4 levels
- From stance to elbow
Today
Open the app and you know what is up.
The class of the day, how many rounds, how long, whether it is measured. And on the other days, the bag is still yours: a timer with your own rounds, the rope that counts jumps and sets, or free style, hitting and measuring with no script.
- Timer
- Rope
- Free style
- Left-handed: the script mirrors
Techniques
Every strike, explained.
Forty-three technique cards with the Thai name, how it is done, the key points, and the mistakes almost everyone makes with their correction. The first levels come with a video, at the minute that matters. The card is a review: the class is where you learn it.
- 43 techniques
- Thai names
- Mistakes and corrections
The grade
And it grades you.
How many strikes landed of those that were called, how far you drifted from the pace, how fast you reacted, and how hard you hit, in g. By round, by side, by technique. The bag decides whether you passed: landing and steadiness, and a single miss never rules.
- Landed
- Steadiness
- Reaction
- Power in g
Progress
See yourself improve.
Every session stays: how many you have done, your best strike, your streak in weeks — because a plan of three sessions a week should not break for resting — and the maximum power session after session.
- History
- Your best
- Streak in weeks
Reminders
It reminds you at your time, on your days.
The app works out from your own sessions when you usually train and tells you which class is due, never two days in a row, and it goes quiet if you stop. All of it calculated on your phone. It switches off in Settings.
Privacy
Nothing leaves your phone.
No account, no server, no internet permission. What the sensors record stays on your phone; the only thing that ever leaves is what you export yourself.
- No account
- No server
- No internet permission
Coming soon
Free to start: the Base level, the timer, the rope, free style and your history, with every strike measured. The whole Path, with the subscription.
Coming soon on Google Play