Your kendo club’s training, in one place.
The timetable, check-in and attendance, club notices, a keiko timer, and your own training notes. For every kendoka and every club. Free, with no ads.
- Free, no ads
- Phone, tablet or computer
kenkai.app is a free training app for kendo clubs and kendoka. A club runs its weekly keiko on it: the timetable, check-in and attendance, members and grades, and notices. Each kendoka keeps notes, practice menus and a record of every session. It works in any browser.
No more group-chat timetables
One timetable for the club, always current. A cancelled session reaches everyone who planned to come.
Attendance in seconds
Members check themselves in with a QR code, or a coach marks Here or Away from the roster.
See every keiko add up
A year of training on one grid, with hours, sessions and streaks.
For kendoka
Everything about your training, in your pocket
Open kenkai.app before keiko to see where and when. Check in when you arrive. Write what you learned on the way home.
Today and the week ahead
Your next session, its venue with a map link, and the coach’s message. Times are always the club’s local time.
Subscribe to your weekly trainings
Choose the trainings you go to. kenkai.app shows them first and tells you when one changes or is cancelled.
A training record
Every session you attend goes on your grid. Add suburi at home or keiko at another dojo by hand.
Notes and practice menus
Write a note after each session. Build drill menus for solo practice. Share them with a senpai or kohai, or keep them private.
Push and email
Cancellations and messages arrive by push. If push is off, they come by email, so you never miss one.




For club admins and coaches
Run the club, not the spreadsheet
A club admin switches kenkai.app into club mode. Members, attendance, the schedule and messages each have their own screen.


Weekly trainings and one-off events
Set a training once and it repeats. Add gradings, seminars and competitions with registration.
QR check-in or attendance by hand
Show the session's QR code and members check in with one tap; visitors give a name. Or mark Here and Away from the roster, with walk-ins.
Members and guests
Approve requests to join. Set grades. Visitors from other clubs join as guests and see only what a guest needs.
Announcements and cancellations
Send a message to the club, or to the people expected at one session.
Health notices that protect privacy
Tell everyone who attended a session about a health issue, without naming the person.
Tools for the dojo floor
A keiko timer, ready on every phone
Tools sits next to Today and Schedule. It works without a connection and keeps the screen on.
Keiko timer
Presets for jigeiko, kakari-geiko, uchikomi and shiai, or your own round, rest and number of rounds. Two beeps to start, a warning before the end, a long tone to stop, and time to change partners between rounds.
Wall clock
Put a tablet or an old laptop on the wall: a large clock on a dark screen that stays on and updates once a minute, to save battery.
Full screen, any device
Read the countdown from across the dojo. Pause, skip a part or start again with one tap.
How it works
Start in a few minutes
kenkai.app runs in the browser. There is nothing to download.
As a kendoka
- 1
Create an account
It takes a minute. Choose the name your club sees.
- 2
Find your club
Open your club's page and ask to join as a member, or as a guest if you visit.
- 3
Subscribe to your trainings
When the admin approves you, choose the weekly trainings you go to.
- 4
Check in and write a note
Check in at the dojo. After keiko, write what you learned while it is fresh.
As a club admin
- 1
Register your club
Send the form below. We email you to check the club, then make you its admin.
- 2
Add your trainings and venues
Set each weekly training once: day, time and venue.
- 3
Invite your members
Send invitations or share the club link. Approve each request and set grades.
- 4
Take attendance
Show the QR code, or open the session and mark Here or Away.
On your phone
Add kenkai.app to your Home Screen
kenkai.app then opens like an app, works offline for what you already opened, and can send push notifications.
iPhone and iPad
- Open kenkai.app in Safari.
- Tap Share, then Add to Home Screen.
- Open kenkai.app from the Home Screen.
- In Profile, Notifications, turn push on.
Android
- Open kenkai.app in Chrome.
- Tap the menu, then Install app or Add to Home screen.
- In Profile, Notifications, turn push on.
Free, with no ads
Free for every kendoka and every club
No fees, no plans, no ads. kenkai.app is built for the kendo community, and clubs that want to help can donate.
No ads, no data sold
Your name, email, club, attendance, notes and health notices stay in kenkai.app.
No limit on members
Add every member, every guest and every session. There are no plans to choose.
Donations from clubs
A club that wants to help pay for hosting can donate. Write it in the message of the club form. A donation is never needed to use kenkai.app.
Go to the club form
Register your club
Bring your club to kenkai.app
Tell us about your club. We email you to check a few details, then we set up the club and make you its admin.
- 1
Send this form
Club name, city and how to reach you. Two minutes.
- 2
We check the club
We email you within a few days, and may ask a question.
- 3
We set up your club
We create the club and make you its admin. You get an email when it is ready.
Questions
Common questions
What is kenkai.app?
kenkai.app is a free web app for kendo clubs and kendoka. A club keeps its training timetable, check-in and attendance, members, announcements and cancellations in one place. Each kendoka keeps training notes, practice menus and a record of every keiko.
What does kenkai.app cost?
Nothing. kenkai.app is free for every kendoka and every club, with no limit on members or sessions.
Does kenkai.app show ads or sell data?
No. kenkai.app shows no ads and does not sell or share your data. Clubs that want to help pay for hosting can donate.
How does my club get on kenkai.app?
Send the Register your club form on this page. We email you to check a few details, then we set up the club and make you its admin. Then you add your weekly trainings and invite your members.
How can our club donate?
Write it in the message of the Register your club form, and we email you with the details. A donation is never needed to use kenkai.app.
Is there a keiko timer for jigeiko rounds?
Yes. Tools in kenkai.app has a keiko timer with presets for jigeiko, kakari-geiko, uchikomi and shiai. It counts rounds, gives time to change partners, beeps to start, warns before the end and sounds a long tone to stop. The screen stays on while it runs.
Which languages does kenkai.app support?
kenkai.app is in English, Japanese and Vietnamese. English is the default. Change the language at the top of this page, or in Profile in the app.
Can I use kenkai.app without a club?
Yes. Create an account and keep training notes, practice menus and a record of your practice at home. The keiko timer and the wall clock work too. Join a club when you are ready.
I train at two clubs. Is that a problem?
No. In kenkai.app you have one home club, and you can be a guest at other clubs. A guest sees the timetable and the notices for sessions, but not the club's internal announcements or member list.
Who sets my grade?
Your club admin. In kenkai.app a kendoka cannot change their own grade, so the grade that people see is the one your club recorded.
Do I need to install an app?
No. kenkai.app works in the browser on a phone, a tablet or a computer. Add it to your Home Screen to open it like an app and to get push notifications.
What happens to my data?
Your club admins see your membership and your attendance at their club. A state or national body sees counts only. When you delete your account, kenkai.app removes your notes, menus and training log.
See you at keiko.
Create your free account in a minute.