Japanese walking, gently guided.
Find your
walking rhythm.
Three minutes brisk. Three minutes easy. ShinshuCore brings a little structure to your everyday walk — and takes care of the timing.
For iPhone · iOS 17+ · Coming soon to the App Store
- Works offline
- No account
- No ads

A change of pace.
A simple routine.
You bring the walking shoes. ShinshuCore guides five rounds of fast and slow walking, for a 30-minute session.
- 3 minutes
Pick up the pace
Walk briskly at a pace that feels right for you. The timer keeps this interval in view.
- 3 minutes
Let it ease
Slow down and recover. A sound or haptic cue lets you know when it is time to change.
- 5 rounds
Find your rhythm
Repeat the pair. The app counts each round, so you can stay with your walk.
One complete walk · 30 minutes · 15 minutes of brisk walking

Actual iPhone app screens. Sensor readings depend on your device and permissions.
A little guidance.
Room to enjoy the walk.
A clear timer while you walk. A simple overview when you are back.
Made for the way
you actually walk.
Around the block, through the park, or along your familiar route.
- A glance on the Lock Screen
- Live Activities show the current interval without returning to the app. Dynamic Island is supported on compatible iPhones.
- Works with Apple Health
- With your permission, read heart rate, steps and walking distance, and save workouts to Health. Heart-rate readings need a source such as Apple Watch; your iPhone alone does not measure them.
- Your progress, at your pace
- Review past sessions, see weekly progress in the app and Home Screen widget, and export your workout history as a CSV file.
- Seven languages, one familiar routine
- English, Polski, Deutsch, Français, Español, Português (Brasil), and 日本語. Choose your language in the app.
A method with roots.
Often called Japanese walking, Interval Walking Training alternates three minutes of brisk walking with three minutes of slower walking. The method was developed by researchers at Shinshu University in Japan.
ShinshuCore puts that rhythm into an everyday timer. It is an independent app, with no affiliation with or endorsement from the university.
Read about the method at Shinshu UniversityShinshuCore is a fitness timer, not a medical device. It does not provide medical advice or promise health outcomes.
Your walk. Your data.
Private by design.
Quiet by nature.
No account, advertising, or analytics. Your workout history is stored on your device, and we do not receive your health or location data.
Apple Health and device backups follow your Apple settings. Exporting a CSV or contacting support shares only what you choose.
Read the privacy policyYour next walk
has a rhythm.
ShinshuCore for iPhone · Coming soon to the App Store
Questions? We are here