# WinDat Opener vs DB One

The clearest difference is price: DB One at Free against WinDat Opener's $5.99. DB One also leads on update cadence (every 3 days vs every 5 months). WinDat Opener's advantage is in-app purchases (none vs 4) and iOS requirement (12.0 vs 16.6). On ads and device support there is nothing between them.

DB One is free to download; WinDat Opener costs $5.99 up front. DB One sells 4 in-app purchases, starting at $29.99 per month. WinDat Opener asks for nothing beyond the download.

WinDat Opener ships an update every 5 months, DB One every 3 days. The most recent releases landed on June 24, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | WinDat Opener | DB One |
| --- | --- | --- |
| Price | $5.99 | **Free** |
| Rating | **[2.3 (3 ratings)](https://appshunter.io/ios/app/windat-opener/id404795709/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 62.5% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 3 days** |
| Monetization | Paid | — |
| Size | 2 MB | 10 MB |
| Requires iOS | **12.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Alexander McGuffog](https://appshunter.io/developer/404795712) | [黎明 卿](https://appshunter.io/developer/1800364766) |

## What reviewers say

### WinDat Opener

[App page](https://appshunter.io/ios/app/windat-opener/id404795709)

Easily open and extract attachments from winmail.dat email files. This utility integrates with your device's file manager and cloud storage, allowing you to preview or open embedded documents and images with other applications.

**Highlights:** Decodes all winmail.dat files, iOS 17 and iPadOS 17 support, Drag-and-drop support on iPads, File manager integration (iCloud, Dropbox), Extracts and previews embedded attachments, Supports various document and image formats

**In-app purchases:** none


### DB One

[App page](https://appshunter.io/ios/app/db-one-click-deploydbdeploy/id6745581156)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pay monthly | $29.99 | per month |
| Pay yearly | $299.99 | per year |
| Pay Per Use | $14.99 | one-time |
| Perpetual License | $699.99 | one-time |


## Frequently asked questions

### Is WinDat Opener free?

WinDat Opener costs $5.99, with no in-app purchases.

### Is DB One free?

DB One is free to download, with in-app purchases available.

### Do WinDat Opener or DB One have ads?

Neither WinDat Opener nor DB One shows ads.

### Which is updated more often, WinDat Opener or DB One?

WinDat Opener ships an update every 5 months, and DB One every 3 days. Most recently, WinDat Opener was updated on June 24, 2026 and DB One on September 8, 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.*