Kujun

Your habits are nobody's business. Kujun keeps everything on your device, no account, no subscription. Check off habits from widgets and notifications.

See your consistency at a glance — and keep it completely to yourself.

Kujun is a private, fully native habit tracker. No account. No subscription. No cloud. Everything lives on your device, and the app collects zero data.

Named after the Korean word 꾸준 (kkujun) — "steady, consistent" — Kujun is built around one idea: show up daily, and watch that consistency build.

PRIVATE BY DESIGN • No account or sign-up — open the app and start • No subscription required • All your data stays in a local database on your device • No analytics, no tracking, no third-party SDKs

YOUR CONSISTENCY AT A GLANCE • A GitHub-style heat map for every habit • Current streak, best streak, and completion rate • The longer you show up, the better it looks

CHECK OFF WITHOUT OPENING THE APP • Home Screen widgets (small and medium) show your last 7–14 days and streaks • Complete habits straight from reminder notifications • Tap the widget to jump right into the app

MADE FOR DAILY USE • Create habits with a name, icon, color, and weekly schedule — daily or any set of weekdays • Sort, reorder, and edit habits any time • Gentle reminders at the time you choose • Haptics and a small celebration when your day is complete

FAST AND NATIVE • Built with native iOS components, SF Symbols, and modern iOS design • Light and dark mode, at home on your iPhone

YOUR DATA IS YOURS • Export a backup file any time and restore it on any device • Delete the app and nothing lingers on a server — because there is no server

Start small. Stay steady. Watch the heat build.