# Document Viewer vs MDer

The clearest difference is ads: Document Viewer at none against MDer's shown. On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Both ship on a similar rhythm, roughly every 2 weeks. The most recent releases landed on September 27, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Document Viewer | MDer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 2 weeks | Every 2 weeks |
| Size | 170 MB | 8 MB |
| Requires iOS | **16.4** | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [GAVRRI](https://appshunter.io/developer/1802751421) | [福恩 毛](https://appshunter.io/developer/421941791) |

## What reviewers say

### Document Viewer

[App page](https://appshunter.io/ios/app/document-viewer-palmory/id6785251686)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### MDer

[App page](https://appshunter.io/ios/app/mder-markdown-reader/id6791898076)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Document Viewer free?

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

### Is MDer free?

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

### Do Document Viewer or MDer have ads?

MDer shows ads; Document Viewer does not.

### Which is updated more often, Document Viewer or MDer?

Document Viewer ships an update every 2 weeks, and MDer every 2 weeks. Most recently, Document Viewer was updated on September 27, 2026 and MDer on September 21, 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.*