# Mars - Simple Markdown Editor

> Simple Markdown and plain text editor with syntax highlighting and HTML preview. (iPhone/iPad app by 飞 杨.)

- Source: https://appshunter.io/ios/app/mars-simple-markdown-editor/id1560530957 (this page in markdown: same URL + `.md`)
- Developer: [飞 杨](https://appshunter.io/developer/1493121831)
- Category: Utilities, Productivity
- Price: Free
- Rating: 2.33/5 from 3 App Store ratings · 4 written reviews indexed
- Age rating: 4+
- Requires: iOS 14.0 · 1 MB
- Languages: English
- Released: 2021-03-28
- Data updated: 2026-07-01
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/mars-simple-markdown-editor/id1560530957/reviews.md

## What is Mars?

Mars is a simple Markdown and plain text editor

- Markdown syntax highlighting
- Support CommonMark and GitHub Flavored standards
- Convenient keyboard toolbar
- HTML preview and export
- Open file system

## Key features

- Markdown syntax highlighting
- CommonMark and GitHub Flavored support
- Convenient keyboard toolbar
- HTML preview and export
- Open file system access

## Recent user reviews (4 of 4)

All indexed reviews: https://appshunter.io/ios/app/mars-simple-markdown-editor/id1560530957/reviews.md

### 1/5 — Not Good On iPad

*2025-02-11*

I use this app on Mac & love it! However, I have tried it on multiple iPads. It always just presents a black screen with no ability to write or edit markdown documents. Very very disappointing.

### 1/5 — Doesn’t work well

*2025-01-27*

Doesn’t edit markdown files anymore

### 2/5 — Incomplete?

*2024-05-22*

This app is useful, very, but it seems yo be incomplete. I had to go elsewhere to check some formatting options not includfed here. 

For instance, a hard line break. This is done by adding two spaces to the end of the line before you hit return. No featured or supported here.

The use of an underscore to indicate italics is supported but not documented in the cheat sheet content.

3 years old. Just asking for updates. :)

### 5/5 — this does enough not too much

*2022-04-15*

This is a tool that provides just enough to crank out a markdown when you don't want to crack open an IDE. The cheatsheet on open is genius.

## Frequently asked questions about Mars

### What devices does Mars support?

Mars is available on macOS, iPhone, iPad, and iPod Touch, allowing you to edit on various Apple devices.

### Is Mars free to use?

Yes, Mars is completely free to download and use, with no in-app purchases or advertisements.

### Does Mars have ads?

No, Mars is ad-free, providing an uninterrupted editing experience.

### How often is Mars updated?

The app was last updated on April 21, 2021, with version 1.0.0. Further update frequency is not specified.

### What is the age rating for Mars?

Mars has an age rating of 4+, making it suitable for a wide range of users.

### Can I preview my Markdown as HTML with Mars?

Yes, Mars includes an HTML preview feature, allowing you to see how your Markdown will render.

### Does Mars support CommonMark and GitHub Flavored Markdown?

Yes, Mars supports both CommonMark and GitHub Flavored Markdown standards for syntax highlighting and rendering.

### What is the user sentiment for Mars based on ratings?

Mars has a rating of 2.3 stars from 3 ratings, indicating a mixed to negative user sentiment.

## Version history (last 1 release)

### 1.0.0 — 2021-04-21

No release notes.

## Apps similar to Mars

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Leaflet - Notes and Todos](https://appshunter.io/ios/app/leaflet-notes-and-todos/id1549589227) | — | Free | Utilities |
| [Eddie](https://appshunter.io/ios/app/eddie/id1512613194) | 4.4 (9) | Free | Utilities |
| [Randa](https://appshunter.io/ios/app/randa/id1589044499) | 5.0 (9) | Free | Utilities |
| [Plain Text Editor - PlainText](https://appshunter.io/ios/app/plain-text-editor-plaintext/id1543131659) | 3.0 (2) | Free | Utilities |
| [Plain Text Paste](https://appshunter.io/ios/app/plain-text-paste/id699658222) | 4.3 (26) | $2.99 | Utilities |
| [EasyNote - Plain Text Notes](https://appshunter.io/ios/app/easynote-plain-text-notes/id1554716317) | 3.7 (3) | Free | Utilities |

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- [AC Guide for Animal Crossing](https://appshunter.io/ios/app/ac-guide-for-animal-crossing/id1512922968)
- [GameHunt](https://appshunter.io/ios/app/gamehunt/id1567339747)

All apps by 飞 杨: https://appshunter.io/developer/1493121831

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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 2026-07-01.*