# Mail Sentinel vs MBOX Viewer

The clearest difference is in-app purchases: Mail Sentinel at none against MBOX Viewer's 3. On price, ads, device support and iOS requirement there is nothing between them.

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

## The numbers

| Metric | Mail Sentinel | MBOX Viewer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (11 ratings)](https://appshunter.io/ios/app/mbox-viewer-email-file-reader/id6760871775/reviews)** |
| Number of ratings | — | **11** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 5 days |
| Monetization | — | Subscription |
| Size | 4 MB | 24 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Sky Benson](https://appshunter.io/developer/1839805807) | [延平 陈](https://appshunter.io/developer/1833168926) |

## What reviewers say

### Mail Sentinel

[App page](https://appshunter.io/ios/app/mail-sentinel/id6757452962)

**Features:** macOS Compatibility

**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 Mail Sentinel free?

Mail Sentinel 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 Mail Sentinel or MBOX Viewer have ads?

Neither Mail Sentinel nor MBOX Viewer shows ads.

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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.*