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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
QR check-in: the coach's laptop shows the session's QR code and the attendance list. A member taps Check in on their phone, and their name appears on the list.

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.

The Schedule screen with the week's sessions.
The training record: a year grid of sessions with hours and streaks.
Training notes linked to sessions.
Notification settings for push and email.

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.

Take attendance: a roster with Here and Away for each person, and a Walk-in button.
The club's attendance grid with sessions held and average attendance.

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.

The keiko timer on a phone: round 3 of 6 counts down, a warning beep at 10 seconds, then the timer changes to Change partners for 15 seconds.

How it works

Start in a few minutes

kenkai.app runs in the browser. There is nothing to download.

As a kendoka

  1. 1

    Create an account

    It takes a minute. Choose the name your club sees.

  2. 2

    Find your club

    Open your club's page and ask to join as a member, or as a guest if you visit.

  3. 3

    Subscribe to your trainings

    When the admin approves you, choose the weekly trainings you go to.

  4. 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. 1

    Register your club

    Send the form below. We email you to check the club, then make you its admin.

  2. 2

    Add your trainings and venues

    Set each weekly training once: day, time and venue.

  3. 3

    Invite your members

    Send invitations or share the club link. Approve each request and set grades.

  4. 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

  1. Open kenkai.app in Safari.
  2. Tap Share, then Add to Home Screen.
  3. Open kenkai.app from the Home Screen.
  4. In Profile, Notifications, turn push on.

Android

  1. Open kenkai.app in Chrome.
  2. Tap the menu, then Install app or Add to Home screen.
  3. 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. 1

    Send this form

    Club name, city and how to reach you. Two minutes.

  2. 2

    We check the club

    We email you within a few days, and may ask a question.

  3. 3

    We set up your club

    We create the club and make you its admin. You get an email when it is ready.

Optional.

We reply to this address.

Optional.

Optional. Helps us check the club.

Optional. For example your training days, questions, or a donation.

We use these details only to contact you about your club. We delete them after 12 months.

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.

Open kenkai.app