# Authenticator App · 2FA vs Winmail Viewer

The clearest difference is review sentiment: Winmail Viewer at 100% against Authenticator App · 2FA's 45%. Winmail Viewer also leads on monetization model (freemium vs subscription) and rating (4.7 vs 4.2). Authenticator App · 2FA's advantage is ratings volume (381 vs 19) and device support (5 vs 3). On price and in-app purchases there is nothing between them.

Both are free to download. Authenticator App · 2FA sells 14 in-app purchases, starting at $9.99 per 7 days and Winmail Viewer sells 4 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

Winmail Viewer holds the better App Store score, 4.7 against 4.2. That said, the two scores are not equally well evidenced: Authenticator App · 2FA has 381 ratings behind it against 19, so its average is the more settled of the two. Written reviews point the same way: 45% of Authenticator App · 2FA's written reviews are positive against 100% of Winmail Viewer's.

Authenticator App · 2FA ships an update every 3 weeks, Winmail Viewer every 9 days. The most recent releases landed on October 19, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Authenticator App · 2FA | Winmail Viewer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.2 (381 ratings)](https://appshunter.io/ios/app/authenticator-app-2fa/id6470149516/reviews) | **[4.7 (19 ratings)](https://appshunter.io/ios/app/winmail-viewer-dat-opener/id6752894720/reviews)** |
| Number of ratings | **381** | 19 |
| Positive reviews | 44.8% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | **Every 9 days** |
| Monetization | Subscription | **Freemium** |
| Size | 114 MB | 25 MB |
| Requires iOS | **15.0** | 17 |
| Devices | **iPhone, iPad, iPod, Mac, Apple Watch** | iPhone, iPad, Mac |
| Age rating | 17+ | 4+ |
| Developer | [FirstOrder.AI](https://appshunter.io/developer/1713063266) | [延平 陈](https://appshunter.io/developer/1833168926) |

## What reviewers say

### Authenticator App · 2FA

[App page](https://appshunter.io/ios/app/authenticator-app-2fa/id6470149516)

This app provides an extra layer of security for your online accounts by generating time-based one-time passwords (TOTP/OTP) for two-factor authentication. It supports numerous services and offers features like encrypted sync, passkey support, and app-level security.

**Highlights:** Generate 2-factor authentication codes, Support for passkeys and passwordless logins, Encrypted sync and backup via iCloud/Google Cloud, App-level security with Face ID/Touch ID, Widgets for home screen access, Organize codes with folders, Import from Google Authenticator

**Features:** Family Sharing, Apple Watch app

**In-app purchases (14)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Authenticator PRO Weekly | $9.99 | per 7 days |
| Authenticator Monthly Premium | $11.99 | per month |
| Authenticator Monthly Premium | $11.99 | per month |
| Authenticator Monthly Premium | $12.99 | per month |
| Authenticator PRO Monthly | $12.99 | per month |
| Authenticator Annual Premium | $29.99 | per year |
| Authenticator PRO Yearly | $29.99 | per year |
| Authenticator PRO Yearly | $39.99 | per year |
| OTP Authenticator PRO Yearly | $39.99 | per year |
| OTP Authenticator PRO Yearly | $49.99 | per year |
| Authenticator PRO Lifetime | $39.99 | one-time |
| Authenticator PRO Lifetime | $59.99 | one-time |
| 2FA Authenticator - Pro | $59.99 | one-time |
| Authenticator PRO Lifetime | $79.99 | one-time |

**What reviewers like**

- 🔒 Strong security and encryption for 2FA codes
- 👍 Easy to use and intuitive interface
- 🚀 Fast and reliable performance
- 💻 Cross-platform synchronization (Windows, Mac, iOS, Android)
- ⌚ Widget support and smartwatch integration

**What reviewers complain about**

- 💰 Misleading free-to-paid conversion model
- 🚫 Difficult cancellation process
- ⚠️ Accidental subscription charges
- 🔐 Authentication and login issues
- 📱 Mobile version requires paid subscription

**Reported bugs**

- QR code scanner not functioning properly
- Unable to import keys on mobile without payment
- Sync issues between Mac and iOS devices
- Photo-based QR code reading fails
- App incompatible with CachyOS

**Requested features**

- CachyOS/Arch Linux version support
- Clearer pricing and subscription information upfront
- Manual code entry without QR scanner requirement
- Better cross-platform synchronization documentation
- Improved setup instructions for new devices


### 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 |


## Frequently asked questions

### Is Authenticator App · 2FA free?

Authenticator App · 2FA is free to download, with in-app purchases available.

### Is Winmail Viewer free?

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

### Which has better reviews, Authenticator App · 2FA or Winmail Viewer?

Winmail Viewer is rated higher. Authenticator App · 2FA averages 4.2 out of 5 from 381 ratings, while Winmail Viewer averages 4.7 from 19 ratings.

### Do Authenticator App · 2FA or Winmail Viewer have ads?

Authenticator App · 2FA shows ads; Winmail Viewer does not.

### Which is updated more often, Authenticator App · 2FA or Winmail Viewer?

Authenticator App · 2FA ships an update every 3 weeks, and Winmail Viewer every 9 days. Most recently, Authenticator App · 2FA was updated on October 19, 2026 and Winmail Viewer on October 18, 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.*