Your micro training habit builder.
There’s only one way to stop the Shimaru alarm: finish the exercise you set for yourself.The camera counts your reps — no cheating.
- Get stronger and more fit, a few reps at a time
- Wake up with more energy — the alarm you can't talk your way out of
- Build a healthy habit — streaks and charts keep you going
How it works
- 1Set your planPick an exercise, a target, and the moment it happens.
- 2The alarm ringsGet up and put the phone on the floor — snoozing isn't on the menu.
- 3Move to stop itThe camera counts your reps out loud. The alarm ends when your set does — and your streak grows.
Tiny workouts,
honestly counted.
Repeating small workouts beats an hour of half-hearted effort.Shimaru schedules them, counts them, and keeps score.
The camera counts your reps
When the alarm rings, you put the phone on the floor and move. The front camera checks your form and counts out loud — the alarm ends when your set does.
Streaks that make it stick
Every finished workout extends your streak, and the charts show your results — the longer it grows, the more motivated you get.
Shields protect your streak
Sick or traveling? A Streak Shield covers a missed workout — a safety net that keeps the habit sustainable.
Everything stays on your phone
The camera is processed entirely on-device with Apple's body-pose technology — no photo, video, or measurement ever leaves your iPhone. No account, no ads, no tracking; only your rep counts are kept.
Frequently Asked Questions
Everything you need to know about Shimaru.
How does Shimaru know I actually did my reps?
Apple's on-device body-pose detection tracks your joints and counts a rep only when you complete the full movement — half-hearted dips don't count.
I'm doing the exercise, but the reps don't go up. Why?
The camera probably can’t see your joints. Baggy clothing — an oversized sweater, a skirt, wide pants — can hide your knees or hips, and hidden joints don’t count. Wear something that shows your body line, keep your whole body in the frame, and exercise in a bright spot — darkness or backlight loses your joints.
Which exercises can I train with?
Push-ups, knee push-ups, squats, sit-ups, and planks. You pick the exercise and how many reps (or seconds) a session takes.
Is the camera footage private?
Completely. Every frame is processed on your iPhone and immediately discarded — no photo, video, or body measurement is ever stored or sent anywhere. Only the final rep count is kept.
What happens when I genuinely can't exercise?
Two ways to protect your streak: spend a Streak Shield to skip that workout, or put it on hold in the app and redo it before the day ends. For longer breaks like a trip, a pause covers up to two weeks — no alarms, streak intact.
Ready to build the habit?
A whole year of Shimaru costs less than a typical month at the gym. Start your 3-day free trial. Your first win is one alarm away.
