# Winmail Viewer vs ShelfCheck Pro

Winmail Viewer and ShelfCheck Pro are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Winmail Viewer sells 4 in-app purchases, starting at $1.99 per month and ShelfCheck Pro sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Winmail Viewer | ShelfCheck Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (19 ratings)](https://appshunter.io/ios/app/winmail-viewer-dat-opener/id6752894720/reviews)** | — |
| Number of ratings | **19** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 9 days | — |
| Monetization | Freemium | — |
| Size | 25 MB | 2 MB |
| Requires iOS | 17 | 17 |
| Devices | **iPhone, iPad, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [延平 陈](https://appshunter.io/developer/1833168926) | [贺 周](https://appshunter.io/developer/1815397078) |

## What reviewers say

### Winmail Viewer

[App page](https://appshunter.io/ios/app/winmail-viewer-dat-opener/id6752894720)

Effortlessly open and view various email attachment formats, including Winmail.dat and MSG files. Extract embedded documents and images, and manage your files with integrated storage. Supports a wide range of email and document types for seamless access.

**Highlights:** Open Winmail.dat, MSG, OFT, XPS/OXPS, and EML files, Extract attachments like PDFs and Office documents, View formatted messages with original layout, Search messages by subject, sender, or keyword, Save and organize files with SwiftData storage, Dark Mode support, iOS Files app integration

**Features:** Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $1.99 | per month |
| Premium Weekly | $1.99 | per 7 days |
| Premium Yearly | $5.99 | per year |
| Lifetime Premium Access | $9.99 | one-time |


### ShelfCheck Pro

[App page](https://appshunter.io/ios/app/shelfcheck-pro/id6780683158)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $1.99 | per month |
| Pro Yearly | $9.99 | per year |
| Pro Lifetime | $19.99 | one-time |


## Frequently asked questions

### Is Winmail Viewer free?

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

### Is ShelfCheck Pro free?

ShelfCheck Pro is free to download, with in-app purchases available.

### Do Winmail Viewer or ShelfCheck Pro have ads?

Neither Winmail Viewer nor ShelfCheck Pro shows ads.

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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.*