Jeejee: Markdown, LaTeX & Ink
記記：Markdown、LaTeX 與手寫筆記
32 days old
Not in any tracked top chart right now.
Updated 22 Oct 2026 · rankings refresh through the day
DeveloperYouci Huang
CategoryProductivity
PriceFree
Released
Rating★ 3.7 (11)
Version26.10.14
Age rating4+
First seen by us
28 Sep 2026
28 Sep 2026Installs (est.)500+ worldwide
Rating
3.7 ★
11 ratings
Measured
Jeejee: Markdown, LaTeX & Ink on the App Store
App details
App ID
6812277576
Publisher
Youci Huang
On the store since
Sep 2026
Under a year
Minimum OS
iOS 17.0+
iPhone XS and later
Devices
iPhone · iPad
Universal purchase
Content rating
4+
Languages
2
EN ZH
Size
95 MB
Also listed in
Education
Jeejee: Markdown, LaTeX & Ink downloads
Worldwide, per day, and installs to date. The band is open; the exact number is free with an account.
How this is calculated
Apple publishes no download counts. iPhone downloads come from chart positions and daily rating growth per country, calibrated on Google Play install counts; lifetime installs from ratings worldwide × installs per rating. Confidence is the chance the real number is within half to double ours.
Where Jeejee: Markdown, LaTeX & Ink's downloads come from Modelled
Last 30 days: organic search, browsing the store, features and paid ads.
Active users
All platforms, worldwide. Free with an account.
Stickiness (DAU / MAU)
how many monthly users open it on a given day
Retention · share of new users still active
Day 1
Day 7
Day 30
Time spent · per daily user
Average time spent Pro
min a day
Sessions a day Pro
Time per session Pro
min
How this is calculated
Monthly users come from lifetime installs across every store, fitted on monthly active user figures companies publish; daily users = monthly × the typical daily/monthly ratio for the category. Confidence is the chance the real number is within half to double ours.
Business model: Ad-led
How Jeejee: Markdown, LaTeX & Ink makes money: subscriptions, one-off purchases and ads.
Ads · 1 ad networks
Ads
/mo
of revenue
Where it ranks now
Every top chart it appears in across 30 countries.
| Country | Charts | Rank |
|---|---|---|
| Not charting right now. | ||
Ratings
App Store, worldwide.
Rating
3.7 ★
11 ratings
Measured
Ratings
11
Measured
About Jeejee: Markdown, LaTeX & Ink
Jeejee is a note-taking and document editor that combines Markdown, LaTeX and handwriting in a single app: Markdown for structured notes, LaTeX for mathematical typesetting and formal reports, and handwriting with Apple Pencil, including annotation directly on lecture PDFs. Documents are stored in the location the user selects. Markdown, LaTeX, HTML, CSV, plain text and PDF remain compatible with other tools that support these formats; handwritten notes are saved as editable .jeejee files.
Designed for students, researchers and professionals in science and engineering: class notes, lab reports, theses, derivations and exam preparation.
Markdown
• Side-by-side editor and preview, synchronized while typing and scrolling
• Headings, lists, to-do items, tables, code, quotes and images
• Inline and display math
• Syntax coloring for code blocks, with optional line wrapping
• Function plots that mark zeros, extrema and intersections
• Mind maps built from indented lists, viewable in full screen
• Heading outline in View mode for long documents
• Format bar with common formatting and templates for code, plots and mind maps
• Export to PDF or Markdown
LaTeX
• Built-in typesetting engine that compiles to PDF in the app, offline, with no separate TeX installation
• XeLaTeX typesetting with full support for Chinese and Unicode
• Automatic recompilation, with error lines clearly indicated
• Source and PDF side by side
• Export to PDF or LaTeX source
Handwriting
• Apple Pencil on iPad: pen, pencil, highlighter, eraser, lasso and shape recognition
• Three colors and three stroke widths in the toolbar
• Blank, ruled, grid and dotted paper in white or black, with multipage notes and page thumbnails
• Strokes that continue across page boundaries
• Text boxes, images with cropping, and function graphs
• Copy, cut and paste for text, images and strokes; up to 100 undo steps
• Annotation copies of PDFs, leaving the original unchanged
• Export as .jeejee files, PDF or page images; save page images to Photos on iPhone and iPad
Stickers
• Sticker store with four free packs of 100 stickers each and five paid packs
• Insertion from the sticker panel in the handwriting toolbar
• Packs linked to the Jeejee account and available on other signed-in devices
• Pack updates applied at the user's discretion
• The sticker store requires a Jeejee account (Apple or Google sign-in); all other features work without an account
Files
• Markdown, LaTeX, HTML, CSV, plain text and handwritten notes; HTML with live preview, CSS and JavaScript
• Code files such as .js, .css, .py and .json with syntax coloring
• Local, iCloud and System Folder storage, including external folders supported by the system and file providers
• List, card and icon views; icons display document content
• Recents, Favorites, drag and drop, and Recently Deleted
• Configurable file types for the New menu
Designed for iPhone, iPad and Mac
• Resizable, docked sidebar on iPad, with a full-screen editor for open d
Designed for students, researchers and professionals in science and engineering: class notes, lab reports, theses, derivations and exam preparation.
Markdown
• Side-by-side editor and preview, synchronized while typing and scrolling
• Headings, lists, to-do items, tables, code, quotes and images
• Inline and display math
• Syntax coloring for code blocks, with optional line wrapping
• Function plots that mark zeros, extrema and intersections
• Mind maps built from indented lists, viewable in full screen
• Heading outline in View mode for long documents
• Format bar with common formatting and templates for code, plots and mind maps
• Export to PDF or Markdown
LaTeX
• Built-in typesetting engine that compiles to PDF in the app, offline, with no separate TeX installation
• XeLaTeX typesetting with full support for Chinese and Unicode
• Automatic recompilation, with error lines clearly indicated
• Source and PDF side by side
• Export to PDF or LaTeX source
Handwriting
• Apple Pencil on iPad: pen, pencil, highlighter, eraser, lasso and shape recognition
• Three colors and three stroke widths in the toolbar
• Blank, ruled, grid and dotted paper in white or black, with multipage notes and page thumbnails
• Strokes that continue across page boundaries
• Text boxes, images with cropping, and function graphs
• Copy, cut and paste for text, images and strokes; up to 100 undo steps
• Annotation copies of PDFs, leaving the original unchanged
• Export as .jeejee files, PDF or page images; save page images to Photos on iPhone and iPad
Stickers
• Sticker store with four free packs of 100 stickers each and five paid packs
• Insertion from the sticker panel in the handwriting toolbar
• Packs linked to the Jeejee account and available on other signed-in devices
• Pack updates applied at the user's discretion
• The sticker store requires a Jeejee account (Apple or Google sign-in); all other features work without an account
Files
• Markdown, LaTeX, HTML, CSV, plain text and handwritten notes; HTML with live preview, CSS and JavaScript
• Code files such as .js, .css, .py and .json with syntax coloring
• Local, iCloud and System Folder storage, including external folders supported by the system and file providers
• List, card and icon views; icons display document content
• Recents, Favorites, drag and drop, and Recently Deleted
• Configurable file types for the New menu
Designed for iPhone, iPad and Mac
• Resizable, docked sidebar on iPad, with a full-screen editor for open d
Latest updates
26.10.14
Import
• Files opened in Jeejee from other apps can now be imported into your locations
• Files shared from other apps arrive in a single import sheet that shows each file's type and size, lets you choose or create a folder, and switches to recently used folders in one tap
• Imported PDFs become copies you can annotate by hand
Stability
• Fixed a crash on iPad that could occur when files were added to or removed from the file list
26.10.13
Editor
• With a hardware keyboard on iPad, Tab and Shift-Tab adjust indentation, and Command-/ adds or removes comments
• Fixed the first line losing its indentation after removing a block comment in Markdown, HTML and CSS
• Fixed $ inside inline code being treated as math
Export
• PDFs now export even when an image can't be loaded, a formula can't be typeset or a table is too wide
• LaTeX documents can be exported to PDF before they are compiled
• Exporting Markdown to PDF now shows its progress
• Fixed the Export menu closing on its own
• On iPhone, long file names no longer hide the mode switcher and Export button
Handwriting
• Reduced stutter while writing
• Shape recognition now supports arcs
• Import images to create a handwritten note, one page per image
• Going back is instant; large notes finish saving in the background
• Fixed tapping near the top of the screen while changing pens jumping back to page 1
• Page navigation and page management in the More menu are now combined under Pages
• The menu on a blank area of the page now opens with touch and hold instead of a tap
Files
• Renaming now edits only the file name, fixing notes that could not be opened after renaming
• After renaming, Back, Forward and other windows follow the new name
• Folders and files in the sidebar offer actions on touch and hold or right-click, including Add to Favorites, Open and Get Info
• When a file is changed on another device, you can choose which version to keep
• Deleting a local location moves its files to Recently Deleted, where they can be restored within the retention period
Mac
• Documents are saved before quitting or closing a window; if saving fails, you can save a copy instead
Appearance
• Selections, links and the sidebar use the Jeejee accent color
• Headings now use a sans-serif typeface
26.10.1
Handwriting and editing
• Add text boxes and edit text directly on the page
• Insert and crop images; choose images from Photos on iPhone and iPad
• Drag selected content directly, resize and rotate with one handle, and duplicate from the native menu
• Use touch to select text and images, with text alignment and font-size controls in the toolbar
• New dark blank, ruled, grid and dotted paper
• Improved selection, dragging and processing for dense handwriting and long documents
Files and navigation
• Improved .jeejee export and older-file support, preserving document names on export
• Save page images to Photos on iPhone and iPad
• Recently Deleted shows Filename, Original Location, Date, Size and Type, with tap actions to restore files
• New System Folder locations replace direct Google Drive connections, with recovery for old offline data
• Tap a selected folder or location again to collapse it
• Fixed long-table wrapping, row heights and iPad file-list headers
• Improved CSV views, file import and preview controls
• Fixed Chinese text input in plain-text and Markdown editors
• Shared read-only Markdown help with separate Traditional Chinese and English documents
• Consistent terminology, help links and Recently Deleted layouts
This version opens .jeejee files created with 26.9.25. Files saved with the new version may require an updated Jeejee app for further editing.
Store changes
What Jeejee: Markdown, LaTeX & Ink changed on its store page: name, icon, screenshots, price, size, languages, requirements.
Description updated
App got bigger
87 MB → 95 MB (+10%)
App got bigger
76 MB → 87 MB (+14%)
