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.