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.