# Control vs MD Viewer

Control and MD Viewer are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Control ships an update every 5 days, MD Viewer weekly. The most recent releases landed on September 29, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Control | MD Viewer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 days** | Weekly |
| Size | 9 MB | 5 MB |
| Requires iOS | 18.5 | **17.0** |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 12+ | 4+ |
| Developer | [Carlos Tarrats](https://appshunter.io/developer/1838355154) | [Enke Solutions LLC](https://appshunter.io/developer/1427110432) |

## What reviewers say

### Control

[App page](https://appshunter.io/ios/app/control-llm-interface/id6752229004)

**Features:** macOS Compatibility

**In-app purchases:** none


### MD Viewer

[App page](https://appshunter.io/ios/app/md-viewer-markdown-viewer/id6811154913)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Control free?

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

### Is MD Viewer free?

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

### Do Control or MD Viewer have ads?

Neither Control nor MD Viewer shows ads.

### Which is updated more often, Control or MD Viewer?

Control ships an update every 5 days, and MD Viewer weekly. Most recently, Control was updated on September 29, 2026 and MD Viewer on September 23, 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.*