Comparison

Authenticator 2FA by KeepSolid vs Authenticator °

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

Head to head
About

Authenticator 2FA by KeepSolid

This app generates time-based one-time passwords to add an extra layer of security for your online accounts. It supports multi-factor authentication for services like Facebook, Google, and Amazon, protecting your data from unauthorized access. The app offers multi-device support and a user-friendly interface.

Highlights
  • Two-factor authentication (TFA/2FA)
  • Time-based one-time passwords (TOTP)
  • Multi-device support
  • Secure code generation
  • User-friendly interface
  • Account aggregation
Features
Read full description

Authenticator by KeepSolid is a utility app used with Facebook, Google, Amazon, and other apps to create an extra layer of two-factor (TFA or 2FA) protection when accessing your accounts. With this code generator, you can add a second validation challenge in addition to logins and passwords and protect your data from any unauthorized access. Multi-factor authentication with time-based one-time passwords (TOTP) guarantees access to your account for only verified parties whatever service you use, Facebook, Google, GitHub, Sony PlayStation, or Steam. This mobile app generates time-based one-time passwords that are more secure than event-based ones and widely used in creating security keys for multi-factor or two-factor authentication. WHAT IS TWO-FACTOR AUTHENTICATION (TFA) Two-factor authentication is a security method that requires two separate forms of identification to access your account: something you know (your password) and something you have (a special code from the TFA app on your trusted device). For instance, even if hackers get your password they will not be able to get access to your Binance or Amazon account as they will not have the secret code from Authenticator Mobile App. HOW THE AUTHENTICATOR APP WORKS When you activate the TFA in any service, you can add KeepSolid Authenticator as a second authentication factor. For example, after you add your Instagram or Facebook account to the Authenticator app, it will generate a time-based one-time password that you can use to confirm that it's you logging in to a website or service. BENEFITS OF MULTI-FACTOR AUTHENTICATION AND AUTHENTICATOR APP We use a myriad of online services every day: Instagram, Facebook, Amazon, Binance, etc. and each of them contains sensitive information that we need to protect. If you don’t want to become a victim of identity theft or data leakage, you need a verified authenticator app. Multi-device support. If you decide to use another device for two-factor authentication you don’t need to transfer each separate account manually. You will be able to create an archive file which you can save wherever you want and import your items on a new device. Secure 2FA protection. Using the verified KeepSolid Authenticator app to generate time-based one-time passwords is more secure than text messaging or email. The primary reason is that it's more difficult for a third party to gain physical access to your device and generate a code without you knowing about it. User-friendly navigation and interface. The Authenticator app by KeepSolid was designed with all users in mind. With our app, you don’t need special technical knowledge to activate the two-factor authentication (TFA) or use the time-based one-time passwords on any service you use. All the code generator interface elements are intuitive. All accounts in one place. With our TOTP code generator, you can link many accounts with TFA enabled and you will don’t need to register new emails to use Multi-factor authentication or TFA on new accounts. All your time-based one-time passwords will be kept in one place. The KeepSolid Authenticator app will provide you with an extra layer of security for your Microsoft Windows, Apple, Sony, or any other accounts. With multi-factor authentication and time-based one-time passwords, you don’t need to rely on a single password. With the rising number of identity thefts and cyber attacks in 2022, you have every reason to look for better ways to stay safe on the web. And The KeepSolid Authenticator App is the solution.

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

Authenticator 2FA by KeepSolid4 screens
Authenticator °4 screens

Verdict

The call

The clearest difference is rating: Authenticator ° at 4.8 against Authenticator 2FA by KeepSolid's 3.9. Authenticator ° also leads on ratings volume (594 vs 11) and update cadence (every 2 weeks vs monthly). Authenticator 2FA by KeepSolid's advantage is in-app purchases (none vs 14). On price, review sentiment, 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 ° sells 14 in-app purchases, starting at $9.99 per month. Authenticator 2FA by KeepSolid asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Authenticator ° holds the better App Store score, 4.8 against 3.9. That said, the two scores are not equally well evidenced: Authenticator ° has 594 ratings behind it against 11, so its average is the more settled of the two. Written reviews point the same way: 75% of Authenticator 2FA by KeepSolid's written reviews are positive against 77% of Authenticator °'s.

UpkeepUpdate frequency

Authenticator 2FA by KeepSolid ships an update monthly, Authenticator ° every 2 weeks. The most recent releases landed on September 29, 2026 and October 7, 2026 respectively.

Scorecard5 real differences · 5 level
Authenticator 2FA by KeepSolid versus Authenticator °: the parameters behind the verdict, then further details
ParameterAuthenticator 2FA by KeepSolidAuthenticator °
PriceFreeFree
Rating3.9 (11 ratings)4.8 (594 ratings) — better
Positive reviews75.0% of reviews76.7% of reviews — better
Number of ratings11594 — better
Update frequencyMonthlyEvery 2 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationAd-supported — betterFreemium
DevicesiPhone, iPad, iPod, Apple WatchiPhone, iPad, iPod, Apple Watch
Requires iOS14.0 — better15.0
Further details — not scored
Size45 MB55 MB
Age rating4+4+
DeveloperKeepSolid Inc.Bence Kaposzta

Customer experience

Authenticator 2FA by KeepSolid

All ratings11 ratings
Positive72.7%
Neutral0.0%
Negative27.3%
Written reviews4 reviews
Positive75.0%
Neutral0.0%
Negative25.0%

Authenticator °

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

Bugs and requests

Authenticator 2FA by KeepSolid

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

None

Authenticator 2FA by KeepSolid

No in-app purchases

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 Authenticator 2FA by KeepSolid free?
Authenticator 2FA by KeepSolid is free to download, with no in-app purchases.
Is Authenticator ° free?
Authenticator ° is free to download, with in-app purchases available.
Which has better reviews, Authenticator 2FA by KeepSolid or Authenticator °?
Authenticator ° is rated higher. Authenticator 2FA by KeepSolid averages 3.9 out of 5 from 11 ratings, while Authenticator ° averages 4.8 from 594 ratings.
Do Authenticator 2FA by KeepSolid or Authenticator ° have ads?
Neither Authenticator 2FA by KeepSolid nor Authenticator ° shows ads.
Which is updated more often, Authenticator 2FA by KeepSolid or Authenticator °?
Authenticator 2FA by KeepSolid ships an update monthly, and Authenticator ° every 2 weeks. Most recently, Authenticator 2FA by KeepSolid was updated on September 29, 2026 and Authenticator ° on October 7, 2026.

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