Rho MD

Rho MD turns your Markdown files into documents you can live in: one library you can navigate, notes that link to each other, and pages that come alive when you touch them.

It works offline. Your .md files stay on your device as plain text you can open with anything, for as long as you keep them.

Rho MD turns your Markdown files into documents you can live in: one library you can navigate, notes that link to each other, and pages that come alive when you touch them.

It works offline. Your .md files stay on your device as plain text you can open with anything, for as long as you keep them.

YOUR KNOWLEDGE, ORGANIZED
• Psi, the built-in library — every note in one place, grouped into constellations
• See your knowledge as a star map: documents as stars, links as the lines between them
• Link notes to each other and follow one idea across many documents
• Tags and categories with durable identity — rename or move a file and nothing gets lost
• Daily notes, bookmarks and full-text search keep everything one tap away

DOCUMENTS THAT COME ALIVE
• Live charts, sliders, quizzes and animated diagrams render right inside your Markdown
• Drag a slider and the document recomputes — no server, no account, no network
• Written in AINP, an open format: it is still just a .md file you can send to anyone
• Free-form canvas boards for visual thinking, saved as plain Markdown

READING, DONE PROPERLY
• Book-quality rendering for .md, .mdx and .markdown files
• Book layout mode for long documents — turn pages instead of scrolling forever
• Light and dark themes, with typography tuned by hand for long reading sessions
• Math, footnotes, tables, syntax-highlighted code and diagrams, all handled

EDITING THAT STAYS OUT OF YOUR WAY
• Tap a paragraph and type — the document is the editor, there is no separate mode
• Formulas, footnotes and images stay intact while you edit around them
• Flip to the raw Markdown source with syntax highlighting whenever you want

PRIVATE BY DEFAULT
• No account required — open a file and start reading
• Your documents stay on your device unless you sign in and choose to sync or publish
• No ads

OPTIONAL CLOUD (rho.md)
• Sign in with email, Google or GitHub to add cloud storage and private sharing: you name exactly who may open a document, and to anyone else the link opens nothing at all
• Rho Pro adds publishing, cross-device library sync and more storage. There are no purchases inside the app.
• Discover, the in-app feed of community-published documents, carries a Report action on every document, and reports go to a moderated queue.