Comparison

Duo Authenticator vs Authenticator °

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

Head to head
About

Duo Authenticator

Enhance your online security with this multi-factor authentication app. It provides an extra layer of protection for your accounts by generating time-sensitive codes, even when offline. Secure your sensitive information with ease and peace of mind.

Highlights
  • Quick and easy setup
  • Wide service compatibility
  • Time-sensitive security codes
  • Offline code generation
  • End-to-end encryption
  • Security code protection
Features
Read full description

As cyber threats continue to become more sophisticated, it's essential to use strong and reliable security measures to protect your online accounts. That's where MFA Authenticator comes in – a mobile app designed to provide an extra layer of security to your online accounts, making it harder for hackers to gain access to your sensitive information. One of the most significant advantages of using MFA Authenticator is its ease of use. With this app, you can set up two-factor authentication (2FA) quickly, making it easy to secure your accounts. You can use MFA Authenticator with a wide range of services, including Google, Facebook, Dropbox, and many more. The app generates unique, time-sensitive codes that you can use to verify your identity when logging in to your accounts, ensuring that only you can access your information. Another great feature of MFA Authenticator is its ability to work offline. Unlike some other 2FA solutions that rely on an internet connection, MFA Authenticator can generate codes even when your phone isn't connected to the internet. This feature is particularly useful when traveling or in areas with a weak or non-existent internet connection. MFA Authenticator is also designed to be highly secure, with a range of measures in place to keep your information safe. For example, the app uses end-to-end encryption to ensure that your codes are only visible to you. Additionally, the app has a built-in security code that you need to enter when setting up the app, ensuring that only you can access your account. • Quick and easy to set up • Compatible with a wide range of services • Generates unique, time-sensitive codes for added security • Works offline, making it ideal for travel • Uses end-to-end encryption to keep your information safe • Requires a security code for added protection. Overall, MFA Authenticator is an excellent app that can help you stay safe and secure online. With its ease of use, offline functionality, and strong security features, you can rest assured that your information is well-protected. So why not give it a try and take your online security to the next level? Terms of service: https://www.code4flutter.in/terms-mfauthenticator

About

Authenticator °

This app enhances your online security by generating time-sensitive passwords for two-factor and multi-factor authentication. It offers seamless data synchronization across devices, Apple Watch support, and robust encryption for your sensitive information.

Highlights
  • One-Time Passwords (OTP)
  • Seamless Data Synchronization
  • Apple Watch Support
  • End-to-End Encryption
  • Import/Export Encrypted Backups
  • Auto-Lock & Biometric Authentication
Features
Read full description

Cutting-edge security meets convenience: Authenticator° is the ultimate iOS app designed to make your digital life safer and hassle-free. Now supporting Apple Watch, we safeguard your accounts across Twitter, Reddit, LinkedIn, Instagram, TikTok, Amazon, Facebook, Dropbox, and more, providing an unparalleled layer of protection. Key Features: • One-Time Passwords (OTP) – Boost your account security with two-factor or multi-factor authentication, using unique, time-sensitive passwords generated on-demand. • Seamless Data Synchronization – Sync your authentication data across multiple devices effortlessly, ensuring you have access to your accounts whenever you need them. • Apple Watch Support – Your one-time passwords are now a glance away. Enjoy seamless integration with your Apple Watch for quick, convenient authentication. • End-to-End Encryption – Enjoy peace of mind knowing your sensitive information is protected with the highest level of encryption, keeping your data secure from prying eyes. • Import/Export Encrypted Backups – Create private, encrypted backups of your data and effortlessly import or export them to ensure your information is always safe and accessible. • Auto-Lock & Biometric Authentication – Tailor the auto-lock time to your needs and use Touch ID or Face ID for seamless access to your accounts without compromising security. • No Account Required – There's no need to create a separate account for Authenticator°. Simply sign in with your Apple ID for data syncing and iCloud backups or opt for "device only" mode to keep your data exclusively on your device. With Authenticator°, you'll never have to worry about the security of your online accounts again. Take control of your digital life and keep your information safe from hackers and identity thieves with the ultimate authentication app. Download Authenticator° today and experience a new level of online security and convenience. Authenticator° subscription: Authenticator° Premium unlocks features like Data Sync Across Devices, End-to-End Data Encryption, Unlimited Tokens, and Encrypted File Export/Import. Available plan pricing is shown in the app before purchase. Payment will be charged to your App Store account at confirmation of purchase, and subscriptions renew automatically unless canceled at least 24 hours before the end of the current period. You can manage or turn off auto-renewal in your account settings after purchase. See the instructions here: https://support.apple.com/en-us/HT202039 You can read the terms of use and privacy policy here: https://kapi90.github.io/authenticator_privacy_policy.html End User License Agreement (EULA) of the App Store applies: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Duo Authenticator4 screens
Authenticator °4 screens

Verdict

The call

The clearest difference is rating: Authenticator ° at 4.8 against Duo Authenticator's 4.2. Authenticator ° also leads on ads (none vs shown) and review sentiment (77% vs 50%). On price, in-app purchases, monetization model and iOS requirement 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 Authenticator sells 3 in-app purchases, starting at $3.99 per 7 days and Authenticator ° sells 14 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Authenticator ° holds the better App Store score, 4.8 against 4.2. That said, the two scores are not equally well evidenced: Authenticator ° has 594 ratings behind it against 24, so its average is the more settled of the two. Written reviews point the same way: 50% of Duo Authenticator's written reviews are positive against 77% of Authenticator °'s.

UpkeepUpdate frequency

Duo Authenticator ships an update monthly, Authenticator ° every 2 weeks. The most recent releases landed on October 9, 2026 and October 7, 2026 respectively.

Scorecard6 real differences · 4 level
Duo Authenticator versus Authenticator °: the parameters behind the verdict, then further details
ParameterDuo AuthenticatorAuthenticator °
PriceFreeFree
Rating4.2 (24 ratings)4.8 (594 ratings) — better
Positive reviews50.0% of reviews76.7% of reviews — better
Number of ratings24594 — better
Update frequencyMonthlyEvery 2 weeks — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhoneiPhone, iPad, iPod, Apple Watch — better
Requires iOS16.615.0 — better
Further details — not scored
Size60 MB55 MB
Age rating4+4+
DeveloperPetr PolasekBence Kaposzta

Customer experience

Duo Authenticator

All ratings24 ratings
Positive83.3%
Neutral0.0%
Negative16.7%
Written reviews4 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

Authenticator °

All ratings594 ratings
Positive94.4%
Neutral3.0%
Negative2.5%
Written reviews103 reviews
Positive76.7%
Neutral7.8%
Negative15.5%

Bugs and requests

Duo Authenticator

Not enough reviews yet to summarise bugs or requests.

Authenticator °

Reported bugs

3 issues
  • List of saved sites/accounts disappearing
  • Trouble logging in or resetting password
  • Incompatibility with older devices

Requested features

4 requests
  • Allow renaming of accounts
  • Add pop-up notifications like other authenticators
  • Improve sync with desktop/laptop
  • Provide more theme/customization options

In-app purchases

3 purchases

Duo Authenticator

Subscriptions3
  • Premium 1 Week$3.997 Days
  • Premium 1 Month1 Month trial$9.991 Month
  • Premium 1 Year3 Days trial$29.991 Year
14 purchases

Authenticator °

Subscriptions11
  • Monthly7 Days trial$9.991 Month
  • Monthly$9.991 Month
  • Monthly3 Days trial$9.991 Month
Show 8 more
  • 3 Month$12.993 Months
  • 1 Year, 50% off$19.991 Year
  • 1 Year Discounted$22.991 Year
  • 1 Year, 30% off$27.991 Year
  • 1 Year with initial offer1 Month trial$34.991 Year
  • Annual subscription7 Days trial$39.991 Year
  • 1 Year$39.991 Year
  • 1 Year3 Days trial$39.991 Year
One-time3
  • Free Lifetime subscriptionFree
  • Lifetime, intro offer$0.29
  • Lifetime$59.99

Questions

Is Duo Authenticator free?
Duo Authenticator is free to download, with in-app purchases available.
Is Authenticator ° free?
Authenticator ° is free to download, with in-app purchases available.
Which has better reviews, Duo Authenticator or Authenticator °?
Authenticator ° is rated higher. Duo Authenticator averages 4.2 out of 5 from 24 ratings, while Authenticator ° averages 4.8 from 594 ratings.
Do Duo Authenticator or Authenticator ° have ads?
Duo Authenticator shows ads; Authenticator ° does not.
Which is updated more often, Duo Authenticator or Authenticator °?
Duo Authenticator ships an update monthly, and Authenticator ° every 2 weeks. Most recently, Duo Authenticator was updated on October 9, 2026 and Authenticator ° on October 7, 2026.

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