# MAPP365 vs EML Viewer · MSG Viewer & MBOX

The clearest difference is in-app purchases: MAPP365 at none against EML Viewer · MSG Viewer & MBOX's 3. EML Viewer · MSG Viewer & MBOX's advantage is update cadence (every 3 weeks vs every 2 months) and iOS requirement (17.0 vs 26.1). On price, ads and device support there is nothing between them.

Both are free to download. EML Viewer · MSG Viewer & MBOX sells 3 in-app purchases, starting at $1.00 per 7 days. MAPP365 asks for nothing beyond the download.

MAPP365 ships an update every 2 months, EML Viewer · MSG Viewer & MBOX every 3 weeks. The most recent releases landed on October 24, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | MAPP365 | EML Viewer · MSG Viewer & MBOX |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Size | 18 MB | 18 MB |
| Requires iOS | 26.1 | **17.0** |
| Devices | iPad | **iPhone, iPad** |
| Age rating | 17+ | 4+ |
| Developer | [Merck Sharp & Dohme LLC](https://appshunter.io/developer/718617686) | [Sheenu Jain](https://appshunter.io/developer/6784692835) |

## What reviewers say

### MAPP365

[App page](https://appshunter.io/ios/app/mapp365/id6760576136)

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

**In-app purchases:** none


### EML Viewer · MSG Viewer & MBOX

[App page](https://appshunter.io/ios/app/eml-viewer-msg-viewer-and-mbox/id6795544592)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro (Weekly) | $1.00 | per 7 days |
| Pro (Yearly) | $7.99 | per year |
| Pro (Lifetime) | $9.99 | one-time |


## Frequently asked questions

### Is MAPP365 free?

MAPP365 is free to download, with no in-app purchases.

### Is EML Viewer · MSG Viewer & MBOX free?

EML Viewer · MSG Viewer & MBOX is free to download, with in-app purchases available.

### Do MAPP365 or EML Viewer · MSG Viewer & MBOX have ads?

Neither MAPP365 nor EML Viewer · MSG Viewer & MBOX shows ads.

### Which is updated more often, MAPP365 or EML Viewer · MSG Viewer & MBOX?

MAPP365 ships an update every 2 months, and EML Viewer · MSG Viewer & MBOX every 3 weeks. Most recently, MAPP365 was updated on October 24, 2026 and EML Viewer · MSG Viewer & MBOX on November 6, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*