Comparison

Authenticator 2FA by KeepSolid vs 2FA 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

2FA Authenticator

This app provides robust digital security for your online accounts using end-to-end encryption. It simplifies adding accounts, securely backs up and syncs your data, and offers offline password generation. Manage all your passwords and generate strong ones with ease.

Highlights
  • Effortless account addition via QR code
  • Secure data backup and cross-device sync
  • Offline one-time password generation
  • Password manager for central organization
  • Customizable strong password generator
  • Face ID and Touch ID secure access
Features
Read full description

Authenticator App - Your Digital Security Guardian! Our authenticator app employs industry-leading end-to-end encryption to deliver security for your online accounts, ensuring every online interaction is safe and secure. Key Features: ● Effortless Account Addition: Simply scan a QR code to add accounts and receive one-time passwords (TOTP) for two-factor or multi-factor authentication (2FA/MFA). ● Secure Data Backup and Sync: Create encrypted backups on iCloud to ensure data security and synchronize across devices, providing access to important information anytime, anywhere. ● Robust Privacy Protection: Advanced encryption safeguards your in-app data, supports unique digital passwords, and offers quick, secure access via Face ID and Touch ID. ● Offline Password Generation: Generate one-time passwords (TOTP) stored locally, enhancing account security without the need for an internet connection. ● Extensive Platform Support: Compatible with thousands of major services, including Google, Facebook, Amazon, and Microsoft. ● Password Manager: Centrally manage various account passwords, organized for efficiency and security. ● Customizable Password Generator: Generate complex passwords with a single click, customizable in length and character types, ensuring robust account protection. Premium Membership Subscription: ● Payment will be charged to your iTunes account upon confirmation of purchase. ● Subscriptions automatically renew unless auto-renew is turned off at least 24 hours before the end of the current period. ● Your account will be charged for renewal within 24 hours prior to the end of the current period at the selected plan rate. ● Subscriptions can be managed by the user, and auto-renewal can be turned off by going to the user’s account settings after purchase. Relevant Agreements: ● Terms of Use: https://docs.qq.com/doc/DRHhqWFRCYkVSTXNk ● Privacy Policy: https://docs.qq.com/doc/DRGZ1U3FJWVhDY2RN Contact Us: For any questions or assistance, please contact us at watchaihelp@outlook.com. Act Now to Safeguard Your Digital Life!

Screenshots

Authenticator 2FA by KeepSolid4 screens
2FA Authenticator4 screens

Verdict

The call

The clearest difference is rating: 2FA Authenticator at 5.0 against Authenticator 2FA by KeepSolid's 3.9. 2FA Authenticator also leads on update cadence (every 6 days vs monthly). Authenticator 2FA by KeepSolid's advantage is review sentiment (75% vs 35%) and in-app purchases (none vs 4). On price, ads 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. 2FA Authenticator sells 4 in-app purchases, starting at $4.99 per 7 days. Authenticator 2FA by KeepSolid asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

2FA Authenticator holds the better App Store score, 5.0 against 3.9. Both are backed by a comparable volume of ratings — 11 and 3 respectively. Written reviews complicate that: 75% of Authenticator 2FA by KeepSolid's written reviews are positive against 35% of 2FA Authenticator's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Authenticator 2FA by KeepSolid ships an update monthly, 2FA Authenticator every 6 days. The most recent releases landed on August 18, 2026 and September 22, 2026 respectively.

Scorecard7 real differences · 3 level
Authenticator 2FA by KeepSolid versus 2FA Authenticator: the parameters behind the verdict, then further details
ParameterAuthenticator 2FA by KeepSolid2FA Authenticator
PriceFreeFree
Rating3.9 (11 ratings)5.0 (3 ratings) — better
Positive reviews75.0% of reviews — better34.8% of reviews
Number of ratings11 — better3
Update frequencyMonthlyEvery 6 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationAd-supported — betterFreemium
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPod
Requires iOS14.0 — better15.0
Further details — not scored
Size45 MB32 MB
Age rating4+4+
DeveloperKeepSolid Inc.朝虹 陈

Customer experience

Authenticator 2FA by KeepSolid

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

2FA Authenticator

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews23 reviews
Positive34.8%
Neutral0.0%
Negative65.2%

In-app purchases

None

Authenticator 2FA by KeepSolid

No in-app purchases

4 purchases

2FA Authenticator

Subscriptions3
  • Authenticator Weekly3 Days trial$4.997 Days
  • Authenticator - Weekly3 Days trial$4.997 Days
  • Authenticator Yearly$39.991 Year
One-time1
  • Authenticator Lifetime$39.99

Questions

Is Authenticator 2FA by KeepSolid free?
Authenticator 2FA by KeepSolid is free to download, with no in-app purchases.
Is 2FA Authenticator free?
2FA Authenticator is free to download, with in-app purchases available.
Which has better reviews, Authenticator 2FA by KeepSolid or 2FA Authenticator?
2FA Authenticator is rated higher. Authenticator 2FA by KeepSolid averages 3.9 out of 5 from 11 ratings, while 2FA Authenticator averages 5.0 from 3 ratings.
Do Authenticator 2FA by KeepSolid or 2FA Authenticator have ads?
Neither Authenticator 2FA by KeepSolid nor 2FA Authenticator shows ads.
Which is updated more often, Authenticator 2FA by KeepSolid or 2FA Authenticator?
Authenticator 2FA by KeepSolid ships an update monthly, and 2FA Authenticator every 6 days. Most recently, Authenticator 2FA by KeepSolid was updated on August 18, 2026 and 2FA Authenticator on September 22, 2026.

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