Comparison

FreeOTP 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

FreeOTP Authenticator

Generate one-time passwords for enhanced online account security. This app creates temporary codes that, when used with your regular password, significantly strengthen your login protection. It functions even without an internet connection.

Highlights
  • Generates one-time passwords
  • Works offline (airplane mode)
  • Supports Google, Facebook, GitHub, etc.
  • Compatible with TOTP/HOTP protocols
  • Open source software
Read full description

FreeOTP adds a second layer of security for your online accounts. This works by generating one-time passwords on your mobile devices which can be used in conjunction with your normal password to make your login nearly impossible to hack. These passwords can be generated even when your phone is in airplane mode. FreeOTP works with many of the great online services you already use, including Google, Facebook, Evernote, GitHub and many more! FreeOTP also may work for your private corporate security if they implement the standardized TOTP or HOTP protocols. This includes great enterprise solutions like FreeIPA. FreeOTP is open source and free software! Licensed under the Apache 2.0 license, you can obtain the source code for FreeOTP at https://fedorahosted.org/freeotp for review or modification. Contributions are welcome!

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

FreeOTP Authenticator2 screens
Duo Auty 2FA4 screens

Verdict

The call

The clearest difference is rating: Duo Auty 2FA at 5.0 against FreeOTP Authenticator's 3.2. FreeOTP Authenticator's advantage is in-app purchases (none vs 2) and ratings volume (173 vs 4). On price, update cadence, 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. Duo Auty 2FA sells 2 in-app purchases, starting at $9.99 per month. FreeOTP Authenticator asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Duo Auty 2FA holds the better App Store score, 5.0 against 3.2. That said, the two scores are not equally well evidenced: FreeOTP Authenticator has 173 ratings behind it against 4, so its average is the more settled of the two.

UpkeepUpdate frequency

FreeOTP Authenticator ships an update every 6 months, Duo Auty 2FA every 8 months. The most recent releases landed on September 23, 2026 and September 11, 2026 respectively.

Scorecard5 real differences · 5 level
FreeOTP Authenticator versus Duo Auty 2FA: the parameters behind the verdict, then further details
ParameterFreeOTP AuthenticatorDuo Auty 2FA
PriceFreeFree
Rating3.2 (173 ratings)5.0 (4 ratings) — better
Positive reviews37.0% of reviews—
Number of ratings173 — better4
Update frequencyEvery 6 months — betterEvery 8 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterSubscription
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS11.0 — better14.0
Further details — not scored
Size11 MB50 MB
Age rating4+17+
DeveloperRed HatGurman Galychina LLC

Customer experience

FreeOTP Authenticator

All ratings173 ratings
Positive49.1%
Neutral9.8%
Negative41.0%
Written reviews189 reviews
Positive37.0%
Neutral10.6%
Negative52.4%

Duo Auty 2FA

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

Bugs and requests

FreeOTP Authenticator

Reported bugs

3 issues
  • Camera not working for QR code scanning
  • App crashing on launch or when unlocking accounts
  • UI issues on larger iOS devices

Requested features

4 requests
  • Add ability to manually enter account details
  • Implement iCloud/cloud backup sync
  • Allow renaming and deleting of accounts
  • Provide Apple Watch support

Duo Auty 2FA

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

FreeOTP 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 FreeOTP Authenticator free?
FreeOTP 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, FreeOTP Authenticator or Duo Auty 2FA?
Duo Auty 2FA is rated higher. FreeOTP Authenticator averages 3.2 out of 5 from 173 ratings, while Duo Auty 2FA averages 5.0 from 4 ratings.
Do FreeOTP Authenticator or Duo Auty 2FA have ads?
Neither FreeOTP Authenticator nor Duo Auty 2FA shows ads.
Which is updated more often, FreeOTP Authenticator or Duo Auty 2FA?
FreeOTP Authenticator ships an update every 6 months, and Duo Auty 2FA every 8 months. Most recently, FreeOTP Authenticator was updated on September 23, 2026 and Duo Auty 2FA on September 11, 2026.

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