Comparison

Authenticator App · 2FA vs Winmail Viewer

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Authenticator App · 2FA

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
Read full description

Authenticator App is a highly secure application designed to provide two-factor authentication (2FA) for your online accounts. By generating unique security token/time-based one-time password (TOTP/OTP), the 2FA Authenticator app provides an extra layer of protection to your accounts when logging in, mitigating the risks of unauthorized access and identity theft and managing all your device online apps 2-factor authentication codes with just one authentication app. Support logging in with passkeys and accounts synchronization across all kinds of smartphones, tablets and mac using iCloud & Google Cloud. We support any service that provides 2 step verification, including the most popular services like Microsoft, Google, Facebook, TikTok, PayPal, Amazon, Snapchat, Coinbase, Roblox, Discord, Twitch, Reddit, Epic, SAP, Shopify, Login.gov, Kick, Activision, NVIDIA, LastPass, Sony, One Healthcare ID, crypto, Stripe, Rockstar, Sprintax, Sterling, Ubisoft, Autotask, Instagram, Air Force, GitHub, mo.gov. Our 2fa Authenticator app ensures the security of your personal data and Apple passwords, safeguarding them from hackers and malicious attacks. Download this authenticator (T)OTP manager now to fortify your digital security! Key Features: 1. Store and generate 2-factor Authentication code/security token. The 2 step verification code will update to a new one every 30 seconds. 2. Easy to setup two-factor Authentication. Scan QR Code or enter manually to add Authenticator secure ID, support import from Google Authenticator. 3. User-friendly guide. The 2FA authentication application has instructions that describe basic steps, such as adding 2FA/MFA/(T)OTP Code. 4. Encrypted sync & backup using iCloud & Google Cloud. Sync your accounts across iPhone, iPad, Mac, Apple Watch and any other smartphones or tablets. 5. Backup codes & Recovery codes. Easily manage and recognize codes using OCR. 6. Support Passkeys. Enhance account security with passwordless logins and prevent hacking attacks. 7. Support Passwords. Auto generate strong passwords and enjoy AutoFill. 8. Widgets. You can access and copy your two factor Authentication Code on homescreen. 9. Live Activities. You can access the copied 2 step verification code & its validity time on Dynamic Island. 10. App level security by Face ID/Touch ID. You are the only one who can read your two factor authentication otp codes. 11. Folders. Too many keys? Don't worry, manage your keys with custom groups. 12. Support 14 languages: English, German, French, Japanese, Korean, Italian, Spanish, Portuguese, Russian, Simplified Chinese, Traditional Chinese, Polish, Ukrainian. Subscription Terms: This (T)OTP Apple password/passkey authentication app offers monthly or annual subscriptions to provide you with unlimited access to all features while you maintain an active subscription. 1. Payment will be charged to the credit card connected to your iTunes Account when you confirm the initial subscription purchase. 2. Subscriptions automatically renew unless auto-renew is turned off at least 24-hours before the end of the current subscription period. 3. Account will be charged for renewal within 24-hours before the end of the current period, and identify the cost of the renewal. 4. You may manage your subscription and auto-renewal may be turned off by going to your Account Settings after the purchase. 5. Any unused portion of a free trial period, if offered, will be forfeited when you purchase a subscription, where applicable. If you have any thoughts, questions or suggestions about our security service app, please feel free to contact us at feedback@firstorder.ai. Home Page: https://authenticator.firstorder.ai Terms of Use: https://authenticator.firstorder.ai/terms-of-service Privacy Policy: https://authenticator.firstorder.ai/privacy-policy-authenticator

About

Winmail Viewer

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
Read full description

Open and view Winmail.dat (Microsoft TNEF), MSG, OFT, XPS/OXPS, and EML files instantly on iPhone and iPad. Access Outlook-generated attachments, decode hidden content, and extract files in seconds. Winmail Viewer is designed to open Microsoft Outlook and Exchange email formats that many apps can’t read. Whether you receive a Winmail.dat (TNEF) attachment or an Outlook MSG/OFT message file, the app decodes and displays the full content — including formatted messages and embedded attachments — so nothing is lost. Open files directly from Mail, Files, AirDrop, or any supported app, and instantly access the message body, documents, and images inside. SUPPORTED FILE TYPES • Winmail.dat (Microsoft TNEF) — Decode Transport Neutral Encapsulation Format files generated by Outlook and Exchange • MSG — Open standalone Microsoft Outlook message files with full formatting and attachments • OFT — View Outlook email template files • EML — Read standard email message files from most email clients • XPS / OXPS — Open Microsoft XML Paper Specification documents with a smooth, PDF-like reading experience WHAT YOU CAN EXTRACT • Attachments including PDF, Word (DOC/DOCX), Excel (XLS/XLSX), PowerPoint (PPT/PPTX) • Images (JPG, PNG, GIF, TIFF, and more) • Rich Text (RTF) and HTML-formatted messages • Embedded files and hidden Outlook content KEY FEATURES • Instantly open Winmail.dat (TNEF), MSG, OFT, XPS/OXPS, and EML files • View fully formatted messages with original layout preserved • Extract and share attachments in seconds • Reply to or forward messages directly from the app • Search by subject, sender, or keyword • Save and organize files with fast SwiftData storage • Dark Mode for comfortable reading • Full integration with the iOS Files app No more “winmail.dat” confusion. Open, decode, extract, and share Outlook attachments effortlessly. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Authenticator App · 2FA4 screens
Winmail Viewer4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard8 real differences · 2 level
Authenticator App · 2FA versus Winmail Viewer: the parameters behind the verdict, then further details
ParameterAuthenticator App · 2FAWinmail Viewer
PriceFreeFree
Rating4.2 (381 ratings)4.7 (19 ratings) — better
Positive reviews44.8% of reviews100.0% of reviews — better
Number of ratings381 — better19
Update frequencyEvery 3 weeksEvery 9 days — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationSubscriptionFreemium — better
DevicesiPhone, iPad, iPod, Mac, Apple Watch — betteriPhone, iPad, Mac
Requires iOS15.0 — better17
Further details — not scored
Size114 MB25 MB
Age rating17+4+
DeveloperFirstOrder.AI延平 陈

Customer experience

Authenticator App · 2FA

All ratings381 ratings
Positive80.6%
Neutral1.8%
Negative17.6%
Written reviews67 reviews
Positive44.8%
Neutral7.5%
Negative47.8%

Winmail Viewer

All ratings19 ratings
Positive94.7%
Neutral0.0%
Negative5.3%
Written reviews15 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Authenticator App · 2FA

Reported bugs

7 issues
  • 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
Show 2 more
  • Accidental subscription triggering
  • Cancellation form submission failures

Requested features

5 requests
  • 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

Not enough reviews yet to summarise bugs or requests.

In-app purchases

14 purchases

Authenticator App · 2FA

Subscriptions10
  • Authenticator PRO Weekly3 Days trial$9.997 Days
  • Authenticator Monthly Premium3 Days trial$11.991 Month
  • Authenticator Monthly Premium$11.991 Month
Show 7 more
  • Authenticator Monthly Premium3 Days trial$12.991 Month
  • Authenticator PRO Monthly$12.991 Month
  • Authenticator Annual Premium$29.991 Year
  • Authenticator PRO Yearly$29.991 Year
  • Authenticator PRO Yearly3 Days trial2 variants$39.991 Year
  • OTP Authenticator PRO Yearly$39.991 Year
  • OTP Authenticator PRO Yearly$49.991 Year
One-time4
  • Authenticator PRO Lifetime$39.99
  • Authenticator PRO Lifetime$59.99
  • 2FA Authenticator - Pro$59.99
Show 1 more
  • Authenticator PRO Lifetime$79.99
4 purchases

Winmail Viewer

Subscriptions3
  • Premium Monthly$1.991 Month
  • Premium Weekly$1.997 Days
  • Premium Yearly$5.991 Year
One-time1
  • Lifetime Premium Access$9.99

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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