# Join Subbee vs MBOX Viewer

The clearest difference is in-app purchases: Join Subbee at none against MBOX Viewer's 3. Join Subbee also leads on iOS requirement (15.0 vs 17.0). MBOX Viewer's advantage is update cadence (every 5 days vs monthly). On price, ads and device support there is nothing between them.

Both are free to download. MBOX Viewer sells 3 in-app purchases, starting at $3.99 per 7 days. Join Subbee asks for nothing beyond the download.

Join Subbee ships an update monthly, MBOX Viewer every 5 days. The most recent releases landed on September 9, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | Join Subbee | MBOX Viewer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (10 ratings)](https://appshunter.io/ios/app/mbox-viewer-email-file-reader/id6760871775/reviews)** |
| Number of ratings | — | **10** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 5 days** |
| Monetization | — | Subscription |
| Size | 63 MB | 22 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | iPhone, iPod | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Derek Jensen](https://appshunter.io/developer/1647861154) | [延平 陈](https://appshunter.io/developer/1833168926) |

## What reviewers say

### Join Subbee

[App page](https://appshunter.io/ios/app/join-subbee/id6469471830)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


### MBOX Viewer

[App page](https://appshunter.io/ios/app/mbox-viewer-email-file-reader/id6760871775)

Easily open, convert, and export MBOX email archives to various formats like PDF, EML, HTML, or TXT. This app offers fast performance for large files, batch conversion, and robust search capabilities. It prioritizes user privacy with 100% offline functionality and no account requirement.

**Highlights:** MBOX to PDF, EML, HTML, TXT conversion, Batch email export, Fast performance for large archives, Search and filter emails, View and extract attachments, Cross-device access with one subscription, 100% offline functionality

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Weekly | $3.99 | per 7 days |
| Premium Yearly | $9.99 | per year |
| MBOX Viewer & Converter Premium | $19.99 | one-time |


## Frequently asked questions

### Is Join Subbee free?

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

### Is MBOX Viewer free?

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

### Do Join Subbee or MBOX Viewer have ads?

Neither Join Subbee nor MBOX Viewer shows ads.

### Which is updated more often, Join Subbee or MBOX Viewer?

Join Subbee ships an update monthly, and MBOX Viewer every 5 days. Most recently, Join Subbee was updated on September 9, 2026 and MBOX Viewer on September 18, 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.*