# MailPeek MSG Viewer vs MBOX Reader · Opener · Convert

The clearest difference is price: MBOX Reader · Opener · Convert at Free against MailPeek MSG Viewer's $3.99. MBOX Reader · Opener · Convert also leads on update cadence (every 3 days vs every 4 months). MailPeek MSG Viewer's advantage is in-app purchases (none vs 8). On ads, device support and iOS requirement there is nothing between them.

MBOX Reader · Opener · Convert is free to download; MailPeek MSG Viewer costs $3.99 up front. MBOX Reader · Opener · Convert sells 7 in-app purchases, starting at $4.99 per 7 days. MailPeek MSG Viewer asks for nothing beyond the download.

MailPeek MSG Viewer ships an update every 4 months, MBOX Reader · Opener · Convert every 3 days. The most recent releases landed on September 19, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | MailPeek MSG Viewer | MBOX Reader · Opener · Convert |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/mbox-reader-opener-convert/id6777394850/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 days** |
| Monetization | — | Free with in-app purchases |
| Size | 4 MB | 13 MB |
| Requires iOS | 17.0 | **16.0** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Sneed IT GmbH](https://appshunter.io/developer/1123369428) | [Rush Tools LLC](https://appshunter.io/developer/1896773547) |

## What reviewers say

### MailPeek MSG Viewer

[App page](https://appshunter.io/ios/app/mailpeek-msg-viewer/id6760124273)

**Features:** Vision Pro support

**In-app purchases:** none


### MBOX Reader · Opener · Convert

[App page](https://appshunter.io/ios/app/mbox-reader-opener-convert/id6777394850)

Easily open, read, and search large MBOX email archives on your Apple devices. Convert emails to various formats like PDF, CSV, or JSON, and extract contacts. All processing happens offline for maximum privacy.

**Highlights:** Open MBOX and MBX archives, Read emails with attachments, Full text search, Export attachments to ZIP, Convert to PDF, CSV, JSON, Extract contacts as vCards, Offline functionality

**Features:** Vision Pro support

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Weekly | $4.99 | per 7 days |
| Pro Weekly | $9.99 | per 7 days |
| Pro Annual | $19.99 | per year |
| Pro Annual | $29.99 | per year |
| Pro Annual | $39.99 | per year |
| Pro Annual | $49.99 | per year |
| Pro Annual | $79.99 | per year |


## Frequently asked questions

### Is MailPeek MSG Viewer free?

MailPeek MSG Viewer costs $3.99, with no in-app purchases.

### Is MBOX Reader · Opener · Convert free?

MBOX Reader · Opener · Convert is free to download, with in-app purchases available.

### Do MailPeek MSG Viewer or MBOX Reader · Opener · Convert have ads?

Neither MailPeek MSG Viewer nor MBOX Reader · Opener · Convert shows ads.

### Which is updated more often, MailPeek MSG Viewer or MBOX Reader · Opener · Convert?

MailPeek MSG Viewer ships an update every 4 months, and MBOX Reader · Opener · Convert every 3 days. Most recently, MailPeek MSG Viewer was updated on September 19, 2026 and MBOX Reader · Opener · Convert on September 22, 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.*