Kujun vs Jeejee

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.

Jeejee brings the ways you write together: jot things down in Markdown, typeset beautiful math and reports in LaTeX, write by hand with Apple Pencil, and annotate lecture PDFs directly. Documents are stored where you choose. Markdown, LaTeX, CSV, plain text and PDF work with tools that support their formats; handwriting remains editable in .jeejee files. Made for students, researchers and anyone in STEM: organize class notes, write lab reports and theses, work through equations and prepare for exams. Markdown • Side-by-side editor and preview that scroll together • Headings, lists, to-dos, tables, code, quotes and images • Inline and display math • One-tap formatting for bold, links, lists and more • Export to PDF or Markdown LaTeX • Built-in typesetting engine compiles to PDF right in the app, offline, with no TeX installation needed • Typesets with XeLaTeX, so Unicode and Chinese text just work • Recompiles as you edit and clearly marks error lines • Source and PDF side by side Handwriting • Write with Apple Pencil on iPad: pen, pencil, highlighter, eraser, lasso and shape recognition • Your three favorite colors and widths sit right in the toolbar • Light and dark blank, ruled, grid and dotted paper, with multiple pages and page thumbnails • On-page text boxes, image insertion and cropping • Turn a PDF into an annotation copy and write on your slides, leaving the original untouched • Share editable .jeejee files, PDF or page images; save page images to Photos on iPhone and iPad Files • Local, iCloud and System Folder locations; connect external folders supported by your system and file provider • List, card and icon views, with icons that show each document's content • Recents, Favorites, drag and drop, and restoration from Recently Deleted Designed for iPhone, iPad and Mac • On iPad, a resizable sidebar stays docked while browsing and steps aside when you open a document • On Mac, multiple windows, a native sidebar and keyboard shortcuts • Seven editor themes with Dark Mode Free, with optional support Jeejee's core features are free forever, with no ads. If it helps you, you can buy the developer a cup of tea in Settings > Support Jeejee. Tips don't unlock anything; they simply support ongoing development. Privacy Jeejee does not track you. Document contents, file names and accounts are never sent to the developer; only anonymous crash reports and usage statistics are collected to improve the app.