Kujun

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.