# MSG Viewer vs DeepCleanOps

The clearest difference is in-app purchases: DeepCleanOps at none against MSG Viewer's 3. DeepCleanOps also leads on iOS requirement (15.5 vs 17.0). MSG Viewer's advantage is update cadence (fortnightly vs every 3 months). On price, ads and device support there is nothing between them.

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

MSG Viewer ships an update fortnightly, DeepCleanOps every 3 months. Both last shipped on October 12, 2026.

## The numbers

| Metric | MSG Viewer | DeepCleanOps |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (11 ratings)](https://appshunter.io/ios/app/msg-viewer-email-opener/id6758084152/reviews)** | — |
| Number of ratings | **11** | — |
| Positive reviews | 93.8% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 3 months |
| Monetization | Free | — |
| Size | 21 MB | 61 MB |
| Requires iOS | 17.0 | **15.5** |
| Devices | **iPhone, iPad, Mac** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [延平 陈](https://appshunter.io/developer/1833168926) | [Angel Mauricio Gallego Pardo](https://appshunter.io/developer/6783020784) |

## What reviewers say

### MSG Viewer

[App page](https://appshunter.io/ios/app/msg-viewer-email-opener/id6758084152)

Easily open and manage various email file formats like .msg, .oft, and .eml without needing Microsoft Outlook. This app allows you to view full email details, search content, handle attachments, and export files to multiple formats. It prioritizes user privacy with local processing and no account requirements.

**Highlights:** Open .msg, .oft, .eml, .mbox, .mht files, View full email details and headers, Search within email content, Manage and preview attachments, Export emails to PDF, HTML, EML, and more, Offline and privacy-focused processing, Dark Mode support

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Weekly | $3.99 | per 7 days |
| Pro Yearly | $9.99 | per year |
| Pro Lifetime Access | $19.99 | one-time |


### DeepCleanOps

[App page](https://appshunter.io/ios/app/deepcleanops/id6783020782)

**In-app purchases:** none


## Frequently asked questions

### Is MSG Viewer free?

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

### Is DeepCleanOps free?

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

### Do MSG Viewer or DeepCleanOps have ads?

Neither MSG Viewer nor DeepCleanOps shows ads.

### Which is updated more often, MSG Viewer or DeepCleanOps?

MSG Viewer ships an update fortnightly, and DeepCleanOps every 3 months. Most recently, MSG Viewer was updated on October 12, 2026 and DeepCleanOps on October 12, 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.*