# MCA Labs vs MSG Viewer EML File Viewer

The clearest difference is in-app purchases: MCA Labs at none against MSG Viewer EML File Viewer's 3. MCA Labs also leads on ads (none vs shown) and update cadence (every 2 weeks vs monthly). On price, device support and iOS requirement there is nothing between them.

Both are free to download. MSG Viewer EML File Viewer sells 3 in-app purchases, starting at $2.99 per 7 days. MCA Labs asks for nothing beyond the download.

MCA Labs ships an update every 2 weeks, MSG Viewer EML File Viewer monthly. Both last shipped on October 10, 2026.

## The numbers

| Metric | MCA Labs | MSG Viewer EML File Viewer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.3 (3 ratings)](https://appshunter.io/ios/app/msg-viewer-eml-file-viewer/id6737722882/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 2 weeks** | Monthly |
| Monetization | — | Free with in-app purchases |
| Size | 138 MB | 66 MB |
| Requires iOS | **15.5** | 16.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [zapfloor](https://appshunter.io/developer/1494946622) | [Code Stars](https://appshunter.io/developer/1751123919) |

## What reviewers say

### MCA Labs

[App page](https://appshunter.io/ios/app/mca-labs/id1587125252)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


### MSG Viewer EML File Viewer

[App page](https://appshunter.io/ios/app/msg-viewer-eml-file-viewer/id6737722882)

Manage, edit, and convert email files directly on your device. Create new MSG and EML files with an intuitive editor, import existing ones, and convert them to PDF or image formats for easy sharing and offline access.

**Highlights:** Create and edit MSG/EML files, Import and view email files, Convert to PDF or Image, Secure local storage, Advanced exporting options, Intuitive user interface

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Ad Free Version | $2.99 | per 7 days |
| Remote Pro: Monthly Ad-Free | $6.99 | per month |
| Remote Pro: Annual Ad-Free | $49.99 | per year |


## Frequently asked questions

### Is MCA Labs free?

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

### Is MSG Viewer EML File Viewer free?

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

### Do MCA Labs or MSG Viewer EML File Viewer have ads?

MSG Viewer EML File Viewer shows ads; MCA Labs does not.

### Which is updated more often, MCA Labs or MSG Viewer EML File Viewer?

MCA Labs ships an update every 2 weeks, and MSG Viewer EML File Viewer monthly. Most recently, MCA Labs was updated on October 10, 2026 and MSG Viewer EML File Viewer on October 10, 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.*