# OnePreview vs Markdown Viewer Editor

The clearest difference is price: OnePreview at Free against Markdown Viewer Editor's $4.99. OnePreview also leads on update cadence (every 2 weeks vs every 2 months). Markdown Viewer Editor's advantage is iOS requirement (13.0 vs 17.0). On ads, in-app purchases and device support there is nothing between them.

OnePreview is free to download; Markdown Viewer Editor costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

OnePreview ships an update every 2 weeks, Markdown Viewer Editor every 2 months. The most recent releases landed on September 11, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | OnePreview | Markdown Viewer Editor |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 2 months |
| Size | 8 MB | 33 MB |
| Requires iOS | 17.0 | **13.0** |
| Devices | iPhone, iPad, Mac | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [培克 罗](https://appshunter.io/developer/1516557687) | [Hefei Yunyilian Intelligent Technology Co., Ltd](https://appshunter.io/developer/1541792997) |

## What reviewers say

### OnePreview

[App page](https://appshunter.io/ios/app/onepreview/id6760284919)

**Features:** Vision Pro support

**In-app purchases:** none


### Markdown Viewer Editor

[App page](https://appshunter.io/ios/app/markdown-viewer-editor/id6762539454)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is OnePreview free?

OnePreview is free to download, with no in-app purchases.

### Is Markdown Viewer Editor free?

Markdown Viewer Editor costs $4.99, with no in-app purchases.

### Do OnePreview or Markdown Viewer Editor have ads?

Neither OnePreview nor Markdown Viewer Editor shows ads.

### Which is updated more often, OnePreview or Markdown Viewer Editor?

OnePreview ships an update every 2 weeks, and Markdown Viewer Editor every 2 months. Most recently, OnePreview was updated on September 11, 2026 and Markdown Viewer Editor on September 10, 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.*