Comparison

Duo Mobile vs Authenticator App

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

Head to head
About

Duo Mobile

Enhance login security with two-factor authentication. Generate passcodes or use one-tap push notifications for seamless access to your accounts. Manage authentication for multiple applications and web services.

Highlights
  • Two-factor authentication
  • Passcode generation
  • Push notification authentication
  • One-tap login
  • Manage multiple accounts
Features
Currently charting
Read full description

Duo Mobile works with Duo Security's two-factor authentication service to make logins more secure. The application generates passcodes for login and can receive push notifications for easy, one-tap authentication on your iPhone, iPad, or Apple Watch. Additionally, you can use Duo Mobile to manage two-factor authentication for other application and web services that make use of passcodes. Note: For Duo accounts, Duo Mobile needs to be activated and linked to your account before it will work. You will receive an activation link as part of Duo's enrollment process. You may add third-party accounts at any time. License agreements for third-party Open Source libraries used in Duo Mobile can be found at https://www.duosecurity.com/legal/open-source-licenses.

About

Authenticator App

Enhance digital security with a multi-factor authenticator app. It provides an extra layer of protection for sensitive accounts and information, working offline for reliable access. Protect email, social media, financial accounts, and more with this user-friendly solution.

Highlights
  • Multi-factor authentication
  • Offline 2FA code generation
  • Wide service integration
  • User-friendly interface
  • Enhanced account protection
Features
Read full description

Enhance the security of your digital life with the Multi-factor Authenticator. Our app is designed to provide you with an additional layer of protection, ensuring that your sensitive accounts and information remain safe from unauthorized access. Whether you're a business professional, a tech-savvy individual, or simply someone who values their online privacy, Multi-factor Authenticator is your trusted companion in the world of cybersecurity. Protect your email, social media, financial accounts, and more. multi-factor Authenticator is your reliable, user-friendly solution, making it effortless to implement two-factor authentication across various online platforms. - Multi-factor Authenticator effortlessly integrates with a wide range of online services and accounts. Whether you're securing your email, social media, or cloud storage, our app supports popular platforms and is continually expanding its compatibility - The app's intuitive and user-friendly interface makes it easy for both tech-savvy individuals and newcomers to 2FA. No technical expertise is required to set up and use this powerful security tool - Don't rely on an internet connection for your 2FA codes. Multi-factor Authenticator works offline, ensuring your security is never compromised, even in challenging network conditions Subscription terms: - Payment will be charged to your Apple ID account at the confirmation of purchase - Your account will be charged for renewal within 24 hours prior to the end of the current period - You can manage and cancel your subscriptions by going to your account settings on the App Store after purchase - After the free trial period, if offered, the subscription automatically renews with the price and duration given above unless it is canceled at least 24 hours before the end of the current period - Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable Privacy Policy: https://apperture.neocities.org/authenticator/apple/privacy Terms of Use: https://apperture.neocities.org/authenticator/apple/terms

Screenshots

Duo Mobile4 screens
Authenticator App3 screens

Verdict

The call

The clearest difference is review sentiment: Duo Mobile at 68% against Authenticator App's 0%. Duo Mobile also leads on in-app purchases (none vs 4) and rating (4.9 vs 4.5). Authenticator App's advantage is iOS requirement (15.0 vs 17.0). On price, ads and device support 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 sells 4 in-app purchases, starting at $4.99 per 7 days. Duo Mobile asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Duo Mobile holds the better App Store score, 4.9 against 4.5. That said, the two scores are not equally well evidenced: Duo Mobile has 2.3M ratings behind it against 24, so its average is the more settled of the two. Written reviews point the same way: 68% of Duo Mobile's written reviews are positive against 0% of Authenticator App's.

UpkeepUpdate frequency

Duo Mobile ships an update fortnightly, Authenticator App monthly. The most recent releases landed on September 25, 2026 and August 18, 2026 respectively.

Scorecard8 real differences · 3 level
Duo Mobile versus Authenticator App: the parameters behind the verdict, then further details
ParameterDuo MobileAuthenticator App
PriceFreeFree
Rating4.9 (2.3M ratings) — better4.5 (24 ratings)
Positive reviews68.2% of reviews — better0.0% of reviews
Number of ratings2.3M — better24
Update frequencyFortnightly — betterMonthly
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
Best chart rank#20 — better—
DevicesiPhone, iPad, Apple Watch — betteriPhone, iPod
Requires iOS17.015.0 — better
Further details — not scored
Size46 MB101 MB
Age rating4+4+
DeveloperDuo Security LLCApperture Limited

Customer experience

Duo Mobile

All ratings2,287,869 ratings
Positive97.6%
Neutral1.5%
Negative0.9%
Written reviews1,985 reviews
Positive68.2%
Neutral3.6%
Negative28.2%

Authenticator App

All ratings24 ratings
Positive91.7%
Neutral0.0%
Negative8.3%
Written reviews2 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Bugs and requests

Duo Mobile

Reported bugs

5 issues
  • Notifications not working as expected
  • App not recognizing new devices after replacement
  • Authentication process getting stuck or timing out
  • Inability to recover accounts after device changes
  • Unexpected language changes in the app

Requested features

5 requests
  • Allow more control and customization for users
  • Improve integration with other authentication methods
  • Provide better support and guidance for new users
  • Add an option to remember trusted devices
  • Streamline the authentication flow for faster access

Authenticator App

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Duo Mobile

No in-app purchases

4 purchases

Authenticator App

Subscriptions4
  • Pro Version$4.997 Days
  • Pro Version3 Days trial$7.997 Days
  • Pro Version$14.991 Month
Show 1 more
  • Pro Version7 Days trial$39.991 Year

Questions

Is Duo Mobile free?
Duo Mobile is free to download, with no in-app purchases.
Is Authenticator App free?
Authenticator App is free to download, with in-app purchases available.
Which has better reviews, Duo Mobile or Authenticator App?
Duo Mobile is rated higher. Duo Mobile averages 4.9 out of 5 from 2.3M ratings, while Authenticator App averages 4.5 from 24 ratings.
Do Duo Mobile or Authenticator App have ads?
Neither Duo Mobile nor Authenticator App shows ads.
Which is updated more often, Duo Mobile or Authenticator App?
Duo Mobile ships an update fortnightly, and Authenticator App monthly. Most recently, Duo Mobile was updated on September 25, 2026 and Authenticator App on August 18, 2026.

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