# Joey MCP Client vs OneOpen

The clearest difference is price: OneOpen at Free against Joey MCP Client's $4.99. OneOpen also leads on update cadence (every 4 days vs every 3 weeks). Joey MCP Client's advantage is in-app purchases (none vs 2) and iOS requirement (13.0 vs 17.0). On ads and device support there is nothing between them.

OneOpen is free to download; Joey MCP Client costs $4.99 up front. OneOpen sells 2 in-app purchases, starting at $0.99 per year. Joey MCP Client asks for nothing beyond the download.

Joey MCP Client ships an update every 3 weeks, OneOpen every 4 days. The most recent releases landed on October 31, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Joey MCP Client | OneOpen |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Positive reviews | — | 57.1% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 4 days** |
| Monetization | — | Freemium |
| Size | 38 MB | 76 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | +4 | 4+ |
| Developer | [Benjamin Kaiser](https://appshunter.io/developer/1670908794) | [Freedom Dimension (shenzhen) Technology Co., Ltd](https://appshunter.io/developer/6776064465) |

## What reviewers say

### Joey MCP Client

[App page](https://appshunter.io/ios/app/joey-mcp-client/id6759186174)

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

**In-app purchases:** none


### OneOpen

[App page](https://appshunter.io/ios/app/oneopen-file-viewer/id6792251542)

View a wide range of file types, including documents, web pages, CAD drawings, and 3D models, directly on your iPhone and iPad. Easily open and manage archives, EPUBs, emails, and certificates. Offers basic viewing for free with advanced features available through a subscription.

**Highlights:** Multi-format file viewing, HTML and Markdown preview, CAD and 3D model rotation, Archive browsing and extraction, EPUB reader, Certificate inspection, File information display

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Advanced Access Annual | $0.99 | per year |
| Advanced Access Lifetime | Free | one-time |


## Frequently asked questions

### Is Joey MCP Client free?

Joey MCP Client costs $4.99, with no in-app purchases.

### Is OneOpen free?

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

### Do Joey MCP Client or OneOpen have ads?

Neither Joey MCP Client nor OneOpen shows ads.

### Which is updated more often, Joey MCP Client or OneOpen?

Joey MCP Client ships an update every 3 weeks, and OneOpen every 4 days. Most recently, Joey MCP Client was updated on October 31, 2026 and OneOpen on November 6, 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.*