Writing
Keep the syntax. Read it cleanly.
Headings, bold, lists, checklists, tables, and code are styled while the Markdown syntax stays in place. Tap the M↓ button to hide the syntax for a clean reading view.
MD Yohaku
Markdown notes, with math
As simple as the built-in Notes app, and your notes are always plain Markdown text, math included. For iPhone, iPad, and Mac.
MD Yohaku is waiting for App Store review. Once it's out, you'll be able to download it here.
iPhone · iPad · Mac — Free for up to 5 notes · Pro is a one-time purchase
MathFrom version 1.1
Write math right in your notes
Write math the same way as on GitHub: $…$ inside a line, and for a formula on its own, wrap it in lines containing just $$ or put it in a ```math code block. Hide the syntax with M↓ and it's typeset as a real formula.
It works on iPhone, iPad, and Mac. Your note stays plain Markdown text, so you can take it to GitHub or anywhere else as is.
Write this
The roots of a quadratic are
$$
x = \frac{-b \pm \sqrt{b^2-4ac}}{2a}
$$
where $b^2-4ac$ is the discriminant.Shown in M↓
- Press Return on a list item and the list continues
- On Mac, switch line formats with menus and keyboard shortcuts
- Version history keeps up to 20 earlier versions of each note, so you can always go back
Tables and listsFrom version 1.1
An even cleaner view with the syntax hidden
Tables and lists look tidier too when you hide the syntax with M↓.
Tables
Columns line up, with rules between rows like a table in a paper.
Lists
Bullets become dots, and checklists become circles you can tap to check.
Character count
Only your words count
MD Yohaku counts your text without Markdown symbols and spaces. It also shows lines, to-dos, and pages of Japanese 400-character manuscript paper.
Set a goal and watch your progress as you write.
1,284characters
3.2manuscript pages
46lines
2 / 4to-dos
Example
Sync and privacy
Your notes stay in your iCloud
Notes sync across iPhone, iPad, and Mac with iCloud. They're stored only in your own iCloud, with note bodies encrypted. The developer can't read them.
- No ads, no analytics, no tracking
- “Data Not Collected” on the App Store
- No account to sign up for
Files
Always just text
Your notes are plain Markdown, so you can take them to any other app.
Import
Open an .md file to import it as a note.
Export
Export a note as .md, or a folder or all your notes as .zip.
Mac only
Read and write notes from Claude
The Mac app includes an MCP server, so Claude Desktop and Claude Code can search, read, and add to your notes. It works only while you allow it in Settings, and stops as soon as you turn it off.
- Turn on Allow Access from Claude in Settings (⌘,)
- Connect with one click: Add to Claude DesktopComing in 1.1MD Yohaku builds the extension and opens it in Claude Desktop. Click Install in the confirmation and you're done.
Pricing
Start free. Go Pro when you need more.
Every feature is in the free version. The only difference is how many notes you can create.
Free version
Free
- Up to 5 notes
- All features, including iCloud sync
MD Yohaku Pro
¥800 one-time purchase
- Unlimited notes
- Buy once, use on iPhone, iPad, and Mac with the same Apple Account
- Family Sharing supported
- Priced in your local currency outside Japan
Support
Frequently asked questions
My notes don't sync
Make sure every device is signed in to iCloud with the same Apple Account, and that iCloud isn't turned off for MD Yohaku in iCloud settings (on iPhone: Settings → your name → iCloud → Apps Using iCloud). The sync status appears at the bottom of the Folders screen.
My Pro purchase isn't available
Open MD Yohaku Pro from the More menu (on Mac, the MD Yohaku menu) and tap Restore Purchase, signed in with the Apple Account you used to buy it.
Exporting notes
Export a note as an .md file, or a folder or all notes as a .zip. Opening an .md file imports it as a note.
Using notes from Claude (Mac)
In Settings (⌘,), turn on Allow Access from Claude, then add the shown command or config to Claude Code or Claude Desktop. For Claude Code, copy the command and run it in Terminal.
Starting with version 1.1, click Add to Claude Desktop under How to Connect in Settings. Allow Access from Claude turns on automatically and Claude Desktop opens; click Install in the confirmation that appears. If Claude Desktop isn't installed, download it first, then click the button again. To set it up by hand instead, expand the manual setup section in Settings to copy the config.
Restoring a deleted note
Deleted notes stay in Recently Deleted for 30 days, and you can restore them from there.