Comparison

Duo Mobile vs Authenticator App ⁸

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 ⁸

This app enhances password management and recall through memory-testing features and secure storage. It also provides two-factor authentication for an extra layer of online security.

Highlights
  • Password recall tests
  • Secure password manager
  • Two-factor authentication
  • Organize passwords
  • Enhance memory
Features
Currently charting
Read full description

Did you know that, according to the Ebbinghaus Memory Curve, we lose about 70% of newly learned information within 24 hours if it is not reinforced? This is where Authenticator App comes in as your ultimate security app, specifically designed to enhance your password management and improve your ability to recall passwords effectively. With our powerful features, you can: Password Recall Test: Challenge your memory with engaging tests designed to strengthen your password recall skills. By regularly practicing, you can combat memory loss and ensure you have access to your accounts when needed. Password Manager: Securely store and organize all your passwords in one convenient place. Our intuitive interface makes retrieving your passwords effortless, so you'll never forget one again. Authenticator: Add an extra layer of protection with two-factor authentication for all your accounts. Increase your security and enjoy a safer online experience. Protect your digital identity and enhance your password security with Authenticator App! - Terms of Use: https://www.agilecodestudio.com/terms - Privacy Policy: https://www.agilecodestudio.com/privacy - Support: https://www.agilecodestudio.com/support

Screenshots

Duo Mobile4 screens
Authenticator App ⁸4 screens

Verdict

The call

The clearest difference is review sentiment: Duo Mobile at 68% against Authenticator App ⁸'s 25%. Duo Mobile also leads on in-app purchases (none vs 4) and update cadence (fortnightly vs every 4 months). Authenticator App ⁸'s advantage is iOS requirement (13.0 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 ⁸ sells 4 in-app purchases, starting at $9.99 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 4.6. That said, the two scores are not equally well evidenced: Duo Mobile has 2.3M ratings behind it against 898, 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 25% of Authenticator App ⁸'s.

UpkeepUpdate frequency

Duo Mobile ships an update fortnightly, Authenticator App ⁸ every 4 months. The most recent releases landed on September 24, 2026 and September 23, 2026 respectively.

Scorecard8 real differences · 3 level
Duo Mobile versus Authenticator App ⁸: the parameters behind the verdict, then further details
ParameterDuo MobileAuthenticator App ⁸
PriceFreeFree
Rating4.9 (2.3M ratings) — better4.6 (898 ratings)
Positive reviews68.2% of reviews — better25.0% of reviews
Number of ratings2.3M — better898
Update frequencyFortnightly — betterEvery 4 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
Best chart rank#19 — better#99
DevicesiPhone, iPad, Apple Watch — betteriPhone, iPod
Requires iOS17.013.0 — better
Further details — not scored
Size46 MB39 MB
Age rating4+17+
DeveloperDuo Security LLCSecure Shield Tech

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 ⁸

All ratings898 ratings
Positive88.6%
Neutral3.7%
Negative7.7%
Written reviews28 reviews
Positive25.0%
Neutral7.1%
Negative67.9%

User reviews

Duo Mobile

From 2.3M App Store ratings

What we love

  • 👍 Simple and easy to use
  • 🔒 Provides an extra layer of security
  • 🚀 Quick and convenient authentication
  • 🔒 Secure login experience
  • 👍 Straightforward and user-friendly

Room to improve

  • 🐛 Unreliable notifications and push functionality
  • 🐛 Compatibility issues when changing devices
  • 🐛 Slow and frustrating authentication process
  • 🐛 Confusing and non-intuitive user interface
  • 🐛 Forced use of the app causing inconvenience

Authenticator App ⁸

From 898 App Store ratings

What we love

  • 👍 Secure devices
  • 😊 For security
  • 👍 Good
  • 👍 Best app on the hood
  • 👍 Secure good devices

Room to improve

  • 😠 Scam app
  • 😠 Fake app
  • 😠 Deceptive subscription
  • 😠 Unnecessary paywalls
  • 😠 Sneaky app

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 ⁸

Reported bugs

5 issues
  • App does not work
  • Bugs
  • Authenticator app doesn't work most of the time
  • Login screen freezes
  • Incompatible with older devices

Requested features

3 requests
  • Fix bugs
  • Create something without bugs
  • Allow use of existing Microsoft authenticator

In-app purchases

None

Duo Mobile

No in-app purchases

4 purchases

Authenticator App ⁸

Subscriptions4
  • Authenticator 1 Week Premium$9.997 Days
  • Authenticator 1 Week Premium3 Days trial$9.997 Days
  • Authenticator 1 Year Premium$49.991 Year
Show 1 more
  • Authenticator 1 Year Premium3 Days trial$49.991 Year

Questions

Is Duo Mobile free?
Duo Mobile is free to download, with no in-app purchases.
Is Authenticator App ⁸ free?
Authenticator App ⁸ is free to download, with in-app purchases available.
Which has better reviews, Duo Mobile or Authenticator App ⁸?
Duo Mobile is rated higher. Duo Mobile averages 4.9 out of 5 from 2.3M ratings, while Authenticator App ⁸ averages 4.6 from 898 ratings.
Do Duo Mobile or Authenticator App ⁸ have ads?
Neither Duo Mobile nor Authenticator App ⁸ shows ads.
Which is updated more often, Duo Mobile or Authenticator App ⁸?
Duo Mobile ships an update fortnightly, and Authenticator App ⁸ every 4 months. Most recently, Duo Mobile was updated on September 24, 2026 and Authenticator App ⁸ on September 23, 2026.
Which is more popular, Duo Mobile or Authenticator App ⁸?
Duo Mobile currently peaks at #19 in the App Store charts, and Authenticator App ⁸ at #99. Chart position reflects recent download velocity rather than total install base.

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