# MarkChart vs OpenMark

The clearest difference is price: MarkChart at Free against OpenMark's $9.99. MarkChart also leads on update cadence (every 3 weeks vs every 6 months). OpenMark's advantage is in-app purchases (none vs 1) and chart position (#52 vs unranked). On review sentiment, ads, device support and iOS requirement there is nothing between them.

MarkChart is free to download; OpenMark costs $9.99 up front. MarkChart sells 1 one-off in-app purchase. OpenMark asks for nothing beyond the download.

MarkChart ships an update every 3 weeks, OpenMark every 6 months. The most recent releases landed on November 8, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | MarkChart | OpenMark |
| --- | --- | --- |
| Price | **Free** | $9.99 |
| Rating | **[4.0 (14 ratings)](https://appshunter.io/ios/app/markchart-mermaid-editor/id6475648822/reviews)** | — |
| Number of ratings | **14** | — |
| Positive reviews | **72.7% of reviews** | 71.4% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 6 months |
| Monetization | **Free with in-app purchases** | Paid |
| Best chart rank | — | **#52** |
| Size | 56 MB | 8 MB |
| Requires iOS | 18.2 | **18** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Alexandre Colucci](https://appshunter.io/developer/1478787437) | [Rotate, LLC.](https://appshunter.io/developer/1435998437) |

## What reviewers say

### MarkChart

[App page](https://appshunter.io/ios/app/markchart-mermaid-editor/id6475648822)

This app allows you to easily create and preview diagrams using a Markdown-inspired text syntax. It offers templates for various diagram types and supports automatic updates when used with external editors. Export your creations to common image formats.

**Highlights:** Mermaid diagram editing, Real-time preview, Built-in templates, Automatic updates, Export to PDF, PNG, SVG, Syntax highlighting, Dark Mode support

**Features:** Family Sharing, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| MarkChart Pro | $12.99 | one-time |


### OpenMark

[App page](https://appshunter.io/ios/app/openmark-markdown-viewer/id6759467015)

**Currently charting:** #52 Top Paid · Developer Tools (US App Store)

View and render markdown files with advanced features like Mermaid diagrams and LaTeX math. Supports various themes, code highlighting, and offline access. Ideal for developers and writers working with markdown on iOS devices.

**Highlights:** Mermaid diagram rendering, LaTeX math support, Code block highlighting, GitHub-style alerts, Interactive checkboxes, Offline functionality, Multiple themes

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is MarkChart free?

MarkChart is free to download, with in-app purchases available.

### Is OpenMark free?

OpenMark costs $9.99, with no in-app purchases.

### Do MarkChart or OpenMark have ads?

Neither MarkChart nor OpenMark shows ads.

### Which is updated more often, MarkChart or OpenMark?

MarkChart ships an update every 3 weeks, and OpenMark every 6 months. Most recently, MarkChart was updated on November 8, 2026 and OpenMark on November 5, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*