Night Code Apps
MDash app icon

MDash

Markdown Notes Editor with Mermaid Diagrams, version 6.0

MDash is a Markdown notes editor for iPhone, iPad, Mac and Apple Vision Pro. In the new MDash mode your notes look finished while you type, yet every note stays plain Markdown underneath. Draw Mermaid diagrams from plain text, write LaTeX math, link notes with [[wiki-links]], sync with iCloud and read on Apple Watch and Apple TV.

Download on the App Store Free, with an optional Pro upgrade
MDash on iPhone showing a formatted daily note

MDash on every Apple device

App Store screenshots for iPhone.

MDash iPhone screenshot 1MDash iPhone screenshot 2MDash iPhone screenshot 3MDash iPhone screenshot 4MDash iPhone screenshot 5MDash iPhone screenshot 6MDash iPhone screenshot 7MDash iPhone screenshot 8MDash iPhone screenshot 9MDash iPhone screenshot 10

MDash Mode

Markdown that looks finished as you type

MDash mode is the new default editor. Type # for a heading, - [ ] for a checklist, or paste from Safari, Mail, Pages, Google Docs or Word and keep headings, lists and links. Type / at the start of a line for the insert menu. The file underneath never changes: it is plain Markdown, byte for byte.

  • Switch between MDash, Markdown and Classic editors at any time
  • Rich paste turns formatted text into clean Markdown
  • Floating formatting bar on iPad and Mac, docked at the bottom or either side
  • Typewriter Scrolling keeps the line you're typing in the middle
MDash mode on iPad showing a formatted daily note with a photo and checklist

Mermaid diagrams & LaTeX math

Diagrams and equations drawn from plain text

Describe a flowchart, sequence diagram, Gantt chart, state machine or mind map in Mermaid and MDash draws it instantly, right inside the note. Write LaTeX formulas and they render the same way. Rendering is built into the app, so nothing leaves your device.

  • Mermaid rendering is free for everyone
  • Four Diagram Colors palettes for light and dark
  • GitHub-style callouts for notes, tips and warnings
  • Math and diagrams carry through to PDF, Word and HTML exports
LaTeX equations rendered inside a note in MDash on iPhone

Built-in MCP server · Mac

Your notes, ready for your AI assistant

On Mac, MDash Pro includes a local MCP server for Claude, Codex, VS Code and other MCP clients. Your assistant can search, read, create and organize your notes. It cannot rewrite an existing note's text, and nothing goes through a server of ours.

MDash on Mac with Settings showing the built-in MCP server

iCloud Sync

Start on your Mac, finish on iPhone

With MDash Pro, your library syncs through your own private iCloud database to iPhone, iPad, Mac, Apple Vision Pro, Apple Watch and Apple TV. Folders, tags, pins and the sort order come along.

MDash on iPad with iCloud Sync settings open

Everything a Markdown notes app should do

Plain text underneath, a finished page on top, and nothing locked in.

MDash Mode
Headings, bold, checklists, tables, photos, math and diagrams take shape as you type. The note itself stays plain Markdown.
Mermaid Diagrams
Flowcharts, sequence diagrams, Gantt charts, mind maps and class diagrams drawn from plain text, rendered on device. Free.
LaTeX Math
Inline and block formulas in LaTeX render in the editor, the preview, exports, and on Apple Watch and Apple TV.
Wiki-Links & Backlinks
Link notes with [[Note title]], get suggestions as you type, and see every note that links back in the Links tab.
Split Mode & Live Preview
Write raw Markdown and watch it render side by side or top and bottom, with the preview following your cursor.
Syntax Highlighting
Code blocks in 20 languages, from Swift and Python to JavaScript, SQL and Rust, highlighted in the editor and in exports.
Folders, Tags & Smart Folders
Coloured folders with icons, tags, smart folders that fill themselves, pinned notes, an outline and sort by date or title.
Search Text in Photos
Scan documents into a note and find any word inside photos, receipts and scans. On-device text recognition, free.
Locked Notes
Lock private notes behind Face ID, Touch ID or Optic ID. Locked notes stay out of widgets and the Watch and TV readers.
Home Screen Widgets
A single note, a notes list, a note count and a checklist you can tick off right from the Home Screen.
Export Your Way
Markdown and plain text for free; PDF, Word (DOCX), ePub, HTML, RTF, JPG and TextBundle with MDash Pro.
Version History & Import
Restore earlier versions of any note, and import from Obsidian, Bear, Apple Notes, TextBundle or any Markdown folder.

One app for 6 Apple platforms

Buy MDash Pro once and it unlocks on every device signed in to your Apple Account.

  • iPhone The full editor with widgets, a tools keyboard, Siri and Shortcuts.
  • iPad Three-column library, Split mode and the floating formatting bar.
  • Mac Native windows, menus, keyboard shortcuts and a built-in MCP server.
  • Apple Vision Pro The complete editor in a window with room to think. Optic ID locks notes.
  • Apple Watch Browse folders and read notes, checklists and photos on your wrist.
  • Apple TV Read drafts, recipes and notes on the big screen.

Free to write. Pro when you need more.

Prices are shown in the app and on the App Store in your currency.

MDash

Free

The whole editor, with no account and no ads.

  • MDash mode, Split mode and live preview
  • Mermaid diagrams, LaTeX math and callouts
  • Folders, tags, smart folders and wiki-links
  • Sketches and note reminders
  • Photo text search, scanning and version history
  • Import from Obsidian, Bear and Apple Notes
  • Export to Markdown and plain text

MDash Pro

Yearly, monthly or lifetime

One purchase for every Apple device you own. All three options unlock the same features, and yearly starts with a 7-day free trial.

  • iCloud Sync across all your devices
  • Apple Watch and Apple TV readers
  • PDF, Word, ePub, HTML, RTF, JPG and TextBundle export
  • Watermark-free Mermaid diagrams
  • Locked notes and Home Screen widgets
  • Built-in MCP server on Mac

Questions people ask

Is MDash a real Markdown editor, or does it store notes in its own format?

Every note is plain Markdown. MDash mode only changes how the text looks on screen, and you can export any note as a .md file at any time.

Is MDash free?

Yes. Writing, MDash mode, Split mode, sketches, note reminders, Mermaid diagrams, math, folders, tags, search and Markdown export are free. MDash Pro adds iCloud Sync, the Apple Watch and Apple TV readers, more export formats, locked notes, widgets and the Mac MCP server, as a yearly subscription with a 7-day free trial, a monthly subscription, or a one-time lifetime purchase.

Which devices does MDash run on?

iPhone, iPad, Mac and Apple Vision Pro run the full editor. Apple Watch and Apple TV are readers for your synced notes. One App Store purchase covers them all.

Can I draw Mermaid diagrams on iPhone?

Yes. Write a mermaid code block and MDash renders flowcharts, sequence diagrams, Gantt charts, class and state diagrams and more, offline, on iPhone, iPad, Mac and Vision Pro.

Can I move my notes from Obsidian, Bear or Apple Notes?

Yes. Import loose files, whole folders such as an Obsidian vault or an Apple Notes export, TextBundle and TextPack packages, and Bear backups, for free. Attachments, dates, tags and folders come along.

Does MDash work offline? Where are my notes stored?

MDash works fully offline. Notes live on your device; if you turn on iCloud Sync, they also go to your own private iCloud database. There is no MDash account, no tracking and no server of ours.

Which formats can I export to?

Markdown (.md) and plain text (.txt) are free, and you can copy any note as rich text. MDash Pro adds PDF, Word (DOCX), ePub, HTML, RTF, JPG and TextBundle. Mermaid diagrams, math and code highlighting carry through to the exported file.

Can I lock private notes?

Yes, with MDash Pro. Lock any note behind Face ID, Touch ID, Optic ID or your device passcode. Locked notes stay out of widgets and the Apple Watch and Apple TV readers, and in iCloud their content is stored in encrypted fields.

Are there Home Screen widgets?

Yes. MDash Pro includes four widgets: a single note, a notes list, a note count, and a checklist you can tick off without opening the app. Tap a widget to jump straight to the note.

Can I read my notes on Apple Watch and Apple TV?

Yes. With MDash Pro and iCloud Sync, Apple Watch and Apple TV show your whole library, including folders, photos, checklists, code, math and callouts. Both are read-only, so you write on iPhone, iPad, Mac or Vision Pro.

Can I get back an earlier version of a note?

Yes, and it's free. Version History keeps earlier versions of every note on your device. Open a note's ⋮ menu, pick a version, then copy it, restore it as a new note, or put it back in place. Replacing the note keeps the current text in the history too.

How does the MCP server work?

On Mac with MDash Pro, Settings ▸ MCP gives you a command to add to Claude Code, Codex, VS Code or another MCP client. The assistant talks to MDash locally on your Mac and can search, read, create and organize notes, but never rewrite an existing note.

Get MDash

Download on the App Store