# Krabby vs MBOX Viewer

The clearest difference is in-app purchases: Krabby at none against MBOX Viewer's 3. Krabby also leads on iOS requirement (14.0 vs 17.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. MBOX Viewer sells 3 in-app purchases, starting at $4.99 per 7 days. Krabby asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 30, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Krabby | MBOX Viewer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.8 (18 ratings)](https://appshunter.io/ios/app/mbox-viewer/id6758815371/reviews)** |
| Number of ratings | — | **18** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Monetization | — | Free |
| Size | 25 MB | 24 MB |
| Requires iOS | **14.0** | 17.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Simonini Software](https://appshunter.io/developer/935985232) | [延平 陈](https://appshunter.io/developer/1833168926) |

## What reviewers say

### Krabby

[App page](https://appshunter.io/ios/app/krabby/id6748836465)

**Features:** macOS Compatibility

**In-app purchases:** none


### MBOX Viewer

[App page](https://appshunter.io/ios/app/mbox-viewer/id6758815371)

Open and read MBOX email archives from various clients on your Apple devices. Export emails to different formats or share them as EML files. This app prioritizes privacy with offline functionality and no data collection.

**Highlights:** Open and read MBOX email files, Support for Gmail Takeout and Thunderbird, Browse emails by sender, subject, date, Search and read full email content, Export emails to PDF, HTML, TXT, Share emails as EML, Offline functionality

**Features:** Family Sharing, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Weekly | $4.99 | per 7 days |
| Premium Yearly | $19.99 | per year |
| Lifetime Premium Access | $39.99 | one-time |


## Frequently asked questions

### Is Krabby free?

Krabby 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 Krabby or MBOX Viewer have ads?

Neither Krabby nor MBOX Viewer shows ads.

### Which is updated more often, Krabby or MBOX Viewer?

Krabby ships an update every 3 weeks, and MBOX Viewer every 3 weeks. Most recently, Krabby was updated on October 30, 2026 and MBOX Viewer on October 24, 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.*