A HEARTBEAT JOURNAL
A heartbeat.
A moment to keep.
Art made from your pulse.
A mood, a few words, a moment.
Keep your days in your own rhythm.
iPhone & Apple Watch
YOUR DAILY JOURNAL
Keep a little
of right now.
After a walk. Between meetings. Before bed.
Keep the context that a number cannot capture.
A pulse becomes a picture.
Rest a finger on your iPhone camera for about 30 seconds. Your heart rate becomes art.
Add how it felt.
Choose from five moods and leave a short note. Both are optional.
There is room for every moment.
Each entry keeps its time, BPM, and artwork. Record more than once a day.


Japanese app screens in development. Entries shown are sample data.
A LITTLE PERSPECTIVE
A week of you.
Worth a second look.
The days you recorded. The moods you chose.
Look back a week at a time.
There is room for the days you leave blank, too.
Your moods come from what you choose to record,
not an inference from your heart rate.


Apple Watch preview · Japanese interface
MYAKU ON YOUR WRIST
From your wrist,
into your journal.
Send a recent heart rate recorded on Apple Watch to your iPhone.
Check when it was measured, then turn it into art.
Save the art, add a mood, and look back on your iPhone.
A FEW THINGS TO KNOW
A little more about myaku.
Can I use it for free?
Basic recording, moods, notes, and weekly reviews are free. Pro adds more art styles. Available plans and prices are shown in the app.
Do I need an Apple Watch?
An iPhone is enough. Rest a finger on the camera and flash for about 30 seconds to read your pulse. On Apple Watch, myaku uses a heart rate recorded in HealthKit within the last five minutes.
Are my moods and notes shared?
Moods and notes stay on your device. They are not included in shared artwork or synced data. Heart-rate measurements are synced to the server while you are signed in.
Do I need an account?
You can start your own journal without signing in. Sharing heartbeat art with a partner through Resonance requires sign-in and an invitation code.
MAKE ROOM FOR YOURSELF
Keep a heartbeat.
Keep a moment.
The new myaku is coming soon.
Until then, explore a little of its heartbeat art.
Try the preview