# MarsDawn: Markdown Editor — Live preview, diagrams & PDF

> Live preview, diagrams & PDF (iPhone/iPad app by Nan-Kuang Lee.)

- Source: https://appshunter.io/ios/app/marsdawn-markdown-editor/id6812925073 (this page in markdown: same URL + `.md`)
- Developer: [Nan-Kuang Lee](https://appshunter.io/developer/6779264786)
- Category: Developer Tools, Productivity
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 26.0 · 18 MB
- Languages: American English, French (France), German (Germany), Japanese, Korean, Chinese (Simplified, China), European Spanish, Chinese (Traditional, Taiwan)
- Released: 2026-10-05
- Data updated: 2026-11-10

## What is MarsDawn?

A Markdown reader for iPhone and iPad. Read what your agent wrote.

MarsDawn opens the Markdown files your AI agent writes — READMEs, specs, design notes — and shows them the way they are meant to be read.

What it is on iPhone and iPad
• A reader. Open a Markdown or text file with the in-app file picker and see it rendered. Editing stays on the Mac for now.
• No account, no sync and no cloud of its own. Files stay where they are.

Rendered, not raw
• Mermaid flowcharts, sequence diagrams and more, drawn right on the page.
• KaTeX math, highlighted code blocks, tables, task lists, block quotes and images next to the document.
• Front matter tucked into a small "Document info" panel.

Find your way around
• An outline of every heading. Tap one to jump there.
• Recent documents, one tap away.

Made for every size
• When the screen is wide enough, such as on iPad or an unfolded iPhone Duo, the outline and the page sit side by side.
• On iPhone, the outline opens as a sheet.

Four preview themes
• Dawn, Classic, Modern and Vivid, each in light and dark. Follow the system or choose one.

One purchase for Mac, iPhone and iPad
• Downloading is free. The first time you open a document, you can start a 14-day free trial.
• After 14 days, reading documents in MarsDawn needs a one-time unlock. The same trial and the same unlock cover MarsDawn on your Mac.
• No subscription. The trial doesn't renew or charge you. Your files never change, and other apps can still open them.

• English, Traditional Chinese, Simplified Chinese, Japanese, Korean, German, French and Spanish.
• No tracking.

A new dawn for Markdown.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| 14-day Trial | Free | one-time |
| Unlock MarsDawn | $4.99 | one-time |


## Is MarsDawn safe?

Not enough ratings yet to assess MarsDawn.

## Is MarsDawn legit?

MarsDawn: Markdown Editor appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for MarsDawn is 65 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 2 releases)

### 1.0.1 — 2026-10-29

- Reads more HackMD and GitHub syntax: ==highlight==, ^superscript^, ~subscript~, a [TOC] table of contents, and callouts such as > [!NOTE] and :::info. A single ~x~ used to be strikethrough and is now subscript; use ~~x~~ for strikethrough.
- Japanese text uses Japanese fonts, collapsible blocks with blank lines inside stay in one piece, and a Mermaid diagram that doesn't parse shows the error with its line number.

### 1.0.0 — 2026-10-28

No release notes.

## More apps by Nan-Kuang Lee

- [Futari — Shared Ledger](https://appshunter.io/ios/app/futari-shared-ledger/id6779264784)
- [CharSpin](https://appshunter.io/ios/app/charspin/id6820187703)

All apps by Nan-Kuang Lee: https://appshunter.io/developer/6779264786

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-11-10.*