# Marko Viewer vs MDer

The clearest difference is in-app purchases: MDer at none against Marko Viewer's 1. MDer also leads on update cadence (every 2 weeks vs every 2 months) and iOS requirement (17.0 vs 26.2). Marko Viewer's advantage is ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. Marko Viewer sells 1 one-off in-app purchase. MDer asks for nothing beyond the download.

Marko Viewer ships an update every 2 months, MDer every 2 weeks. The most recent releases landed on September 8, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Marko Viewer | MDer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Size | 15 MB | 8 MB |
| Requires iOS | 26.2 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [E-String Technologies, Inc.](https://appshunter.io/developer/294199643) | [福恩 毛](https://appshunter.io/developer/421941791) |

## What reviewers say

### Marko Viewer

[App page](https://appshunter.io/ios/app/marko-viewer/id6759970069)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Marko Viewer | $4.99 | one-time |


### 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 Marko Viewer free?

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

### Is MDer free?

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

### Do Marko Viewer or MDer have ads?

MDer shows ads; Marko Viewer does not.

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

Marko Viewer ships an update every 2 months, and MDer every 2 weeks. Most recently, Marko Viewer was updated on September 8, 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.*