MarkUp — Text & Math Editor

MarkUp — Text & Math Editor

MarkUp is a writing app for notes, research, and long-form work — from quick Markdown notes to a full LaTeX thesis. Typeset .tex files with a real XeTeX engine that runs entirely on your device, write in Markdown with live preview, or edit .docx files with a true page layout. For students, researchers, and technical writers, on Mac, iPhone, and iPad.

LaTeX, offline (Pro) 
• A real XeTeX engine on your device — no internet, no account, nothing uploaded 
• Download the typesetting files once, then compile on a plane 
• Tap the rendered page to jump to the line that made it, and back again (SyncTeX) 
• Autocomplete for commands, citations, references, environments, and file paths 
• Errors and warnings marked in the margin, with plain-English explanations 
• Code check that catches common LaTeX mistakes before you compile 
• Search the typeset PDF, follow its outline, fold sections, step through pages 
• Maths symbol palette, visual table builder, live preview of the equation at your cursor 
• Multi-file projects, BibTeX bibliographies, and ready-made templates

Word (.docx) documents 
• Create and edit fully formatted .docx files with a real page layout 
• Set page size, margins, body inset, line spacing, and headers & footers — saved per document 
• Insert photos and wrap text around them: in line with text, in columns, behind text, or in front of text 
• Zoom and fit-to-window page view 
• LaTeX math inside .docx documents (Pro)

Write in Markdown 
• Live rendered preview as you type 
• LaTeX math equation rendering (KaTeX) 
• Split view — write and preview side by side 
• Table editor with a visual grid 
• Special character insertion 
• Find & replace with match highlighting 
• Word count and character count

Templates 
• Start from a ready-made article, paper, thesis, problem set, presentation, or CV 
• Save any document as a reusable template, for any file type (Pro) 
• Your templates sync across your devices

Version history 
• Automatically keeps earlier drafts as you edit 
• Compare any version against the current file with side-by-side rendered differences 
• Restore any earlier version in a tap (Pro)

Files & workflow 
• Works with txt, md, tex, rmd, fountain, yaml, yml, json, csv, html, rtf, and docx files 
• Export to PDF, HTML, RTF, Markdown, LaTeX, .docx, and Plain Text 
• Open and sync any folder from iCloud or your device, including subfolders 
• Find & replace across an entire folder 
• Customizable toolbar — show only what you need 
• Spell check that understands LaTeX, in the language you write in 
• File autosave 
• Dark mode support 
• Full keyboard shortcut support

MarkUp is free to use. MarkUp Pro unlocks offline LaTeX typesetting, LaTeX in .docx, version history, your own templates, and unlimited file exports — available as a one-time purchase or a yearly subscription.

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