Build habits.
Break habits.
Kotsumi is a simple habit app that turns your daily progress into stamps — one tap, no fuss. For habits you want to build, and habits you want to let go of.
Keep going, gently.
You don't need to complete every day. Just one thing, today.
Miss a day? Nothing resets.
Most habit apps reset your streak to zero the moment you miss a day. Kotsumi doesn't. Skip a day, and your stamps are still there. Pick up again today — no guilt, no starting over.
- check Gentle with habits you're building
- check Gentle with habits you're breaking, too
Track numbers, too
Habits like "drink 2,000ml of water" or "coffee, max 3 cups a day" are supported with quantity tracking — Kotsumi automatically checks whether you've hit your goal or stayed under your limit.
Look back at a glance
A monthly stamp calendar shows your progress at a glance. Check your total stamps and completion rate anytime.
iPhone, iPad, and Apple Watch.
Log a habit from a widget or your wrist in one tap. Unlock everything to sync automatically across devices via iCloud.
iPad
List and details side by side on a roomier screen.
iPhone
Home Screen and Lock Screen widgets for a one-tap stamp.
Apple Watch
Stamp a habit straight from your wrist.
Privacy first.
Your data stays on your device and in your own iCloud. Kotsumi doesn't collect behavioral data for advertising.
Pay once. No subscription.
Try it for free. Unlock everything with a single one-time payment — no monthly fees, ever. No ads, either.
Free
Everything you need to get started.
- check Up to 5 habits
- check Check-off & numeric tracking
- check Reminders & widgets
Unlock Everything
One-time payment. Not a subscription — won't auto-renew. See the price in the app.
- check Unlimited habits
- check iCloud sync
- check App Lock (Face ID / Touch ID)