Comparison

Google Authenticator vs Duo Auty 2FA

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

Head to head
About

Google Authenticator

Enhance your online security with a second verification step for your accounts. Generate codes directly on your phone, even offline, to protect against unauthorized access. Sync codes across devices for easy access and manage multiple accounts securely.

Highlights
  • Offline code generation
  • Sync codes across devices
  • Automatic QR code setup
  • Support for multiple accounts
  • Time-based and counter-based codes
  • Transfer accounts via QR code
Read full description

Google Authenticator adds an extra layer of security to your online accounts by adding a second step of verification when you sign in. This means that in addition to your password, you'll also need to enter a code that is generated by the Google Authenticator app on your phone. The verification code can be generated by the Google Authenticator app on your phone, even if you don't have a network or cellular connection. • Sync your Authenticator codes to your Google Account and across your devices. This way, you can always access them even if you lose your phone. • Set up your Authenticator accounts automatically with a QR code. This is quick and easy, and it helps to ensure that your codes are set up correctly. • Support for multiple accounts. You can use the Authenticator app to manage multiple accounts, so you don't have to switch between apps every time you need to sign in. • Support for time-based and counter-based code generation. You can choose the type of code generation that best suits your needs. • Transfer accounts between devices with a QR code. This is a convenient way to move your accounts to a new device. To use Google Authenticator with Google, you need to enable 2-Step Verification on your Google Account. To get started visit http://www.google.com/2step

About

Duo Auty 2FA

Enhance your online security with this two-factor authentication app. It supports time-based one-time passwords (TOTP) and PUSH authentication for seamless and secure access to your accounts. Add multiple accounts, customize with brand icons, and unlock with biometrics.

Highlights
  • Two-factor authentication (2FA)
  • TOTP and PUSH authentication
  • QR code scanning and import
  • Manual code entry
  • Brand icon customization
  • Biometrics integration
Features
Read full description

Auty 2FA presents an optimal solution for fortifying your online security. This complimentary authentication application provides two-factor authentication (2FA) via time-based one-time passwords (TOTP) and PUSH authentication, ensuring top-tier protection for your online accounts. Seamlessly integrating with any website or application supporting TOTP authentication, Auty 2FA enables effortless and secure access to your accounts. Whether you're an individual or a business entity, Auty 2FA stands as the premier choice for upholding your security and privacy standards. Auty 2FA operates independently of network connectivity and is designed to preserve your device's battery life. You can conveniently add multiple accounts to the app, including Facebook, Amazon, Dropbox, Google, LinkedIn, GitHub, and more. Key Features: * QR Code Scanning: Effortlessly add your accounts by scanning QR codes, eliminating manual entry and inconvenience. * QR Code Import: Quickly import QR codes from your gallery to set up your accounts swiftly. * Manual Code Entry: Enter authentication codes manually with ease, providing added flexibility. * Brand Icons Customization: Personalize your accounts with thousands of brand icons, simplifying identification. * Biometrics Integration: Unlock the app effortlessly with face recognition, enhancing security. To use the Auty 2FA App, you must acquire the Auty 2FA App Premium. Payment will be deducted from your iTunes Account upon purchase confirmation and will automatically renew at the same price, unless disabled in your iTunes Account Settings at least 24 hours before the current period ends. You can manage your subscription through your iTunes Account Settings. If a free trial period is provided and you purchase a subscription, any unused portion of the trial will be forfeited. Privacy policy: https://secondphone.app/auty2fa/privacy.html Terms of use: https://secondphone.app/auty2fa/terms.html EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Take control of your online security and experience peace of mind with Auty 2FA.  Download now to safeguard your digital life like never before!

Screenshots

Google Authenticator4 screens
Duo Auty 2FA4 screens

Verdict

The call

The clearest difference is in-app purchases: Google Authenticator at none against Duo Auty 2FA's 2. Google Authenticator also leads on ratings volume (1.2M vs 4) and chart position (#3 vs unranked). Duo Auty 2FA's advantage is iOS requirement (14.0 vs 16.0). On price, rating, update cadence and ads 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. Duo Auty 2FA sells 2 in-app purchases, starting at $9.99 per month. Google Authenticator asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.9 for Google Authenticator against 5.0 for Duo Auty 2FA. That said, the two scores are not equally well evidenced: Google Authenticator has 1.2M ratings behind it against 4, so its average is the more settled of the two.

UpkeepUpdate frequency

Google Authenticator ships an update every 4 months, Duo Auty 2FA every 8 months. The most recent releases landed on September 24, 2026 and September 11, 2026 respectively.

Scorecard5 real differences · 6 level
Google Authenticator versus Duo Auty 2FA: the parameters behind the verdict, then further details
ParameterGoogle AuthenticatorDuo Auty 2FA
PriceFreeFree
Rating4.9 (1.2M ratings)5.0 (4 ratings) — better
Positive reviews58.4% of reviews—
Number of ratings1.2M — better4
Update frequencyEvery 4 months — betterEvery 8 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterSubscription
Best chart rank#3 — better—
DevicesiPhone, iPadiPhone, iPod
Requires iOS16.014.0 — better
Further details — not scored
Size39 MB50 MB
Age rating4+17+
DeveloperGoogleGurman Galychina LLC

Customer experience

Google Authenticator

All ratings1,160,889 ratings
Positive96.6%
Neutral1.0%
Negative2.4%
Written reviews1,648 reviews
Positive58.4%
Neutral4.5%
Negative37.1%

Duo Auty 2FA

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Google Authenticator

Reported bugs

4 issues
  • Codes randomly deleted
  • Accounts wiped after update
  • Duplicated accounts then deleted all
  • Timing issues, codes didn't work

Requested features

4 requests
  • Add scan from photo feature
  • Ability to rename and group accounts
  • Add Apple Watch app
  • Implement cloud backup option

Duo Auty 2FA

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Google Authenticator

No in-app purchases

2 purchases

Duo Auty 2FA

Subscriptions2
  • Monthly with trial3 Days trial$9.991 Month
  • Yearly plan with trial7 Days trial$59.991 Year

Questions

Is Google Authenticator free?
Google Authenticator is free to download, with no in-app purchases.
Is Duo Auty 2FA free?
Duo Auty 2FA is free to download, with in-app purchases available.
Which has better reviews, Google Authenticator or Duo Auty 2FA?
Duo Auty 2FA is rated higher. Google Authenticator averages 4.9 out of 5 from 1.2M ratings, while Duo Auty 2FA averages 5.0 from 4 ratings.
Do Google Authenticator or Duo Auty 2FA have ads?
Neither Google Authenticator nor Duo Auty 2FA shows ads.
Which is updated more often, Google Authenticator or Duo Auty 2FA?
Google Authenticator ships an update every 4 months, and Duo Auty 2FA every 8 months. Most recently, Google Authenticator was updated on September 24, 2026 and Duo Auty 2FA on September 11, 2026.

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