Comparison

2FA Authenticator (2FAS) vs Authenticator App

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

Head to head
About

2FA Authenticator (2FAS)

Securely log in to your online accounts with two-factor authentication. This app protects your personal data and passwords from cyber threats with a simple, private, and open-source solution. It offers easy token restoration, app protection, and offline functionality.

Highlights
  • Two-factor authentication
  • Token backup and restore
  • App protection with passcode/biometrics
  • Open-source and transparent
  • Offline functionality
  • Cross-device sync
  • One-tap authentication with browser extensions
Features
Read full description

2FAS is the easiest way to enable two-factor authentication (or multi-factor authentication) to verify your identity and securely log in to accounts to keep your personal data and passwords protected from cyber threats — all from one app, 100% free! The world’s most secure, private, and simple 2FA app. Secure: • Easily restore your tokens with backups. • Add app protection with your passcode or biometrics. • 2FAS is open-source, transparent, and community-driven. Simple: • 2FAS syncs across your mobile devices. • An interface designed for simplicity. • One-tap authentication with 2FAS Browser Extensions. • Multi-language support. • Quick guides for setup and support. Private: • 2FAS works offline. • 2FAS doesn't store any passwords or metadata. • 100% anonymous use, no account required. It’s not too late to protect your data, so what are you waiting for? Protect your online accounts and services now with TOTP and HOTP algorithms. Start using the 2FAS authenticator app today! If you have any questions, talk with us on our Discord server: https://discord.gg/q4cP6qh2g5 Learn more about 2FAS: • Check our GitHub repository: https://github.com/twofas • Visit our website at: https://2fas.com/ • Follow us on X: https://x.com/2FAS_com • Subscribe on YouTube: https://www.youtube.com/@2FAS

About

Authenticator App

This app provides secure and effortless two-factor authentication (2FA) and multi-factor authentication (MFA) by generating time-based one-time passwords (TOTP) for online accounts. It offers encrypted backup, cloud sync, and QR code integration for easy setup and cross-device access, serving as a reliable alternative to other authenticator apps.

Highlights
  • Secure 2FA/MFA code generation
  • Encrypted backup and cloud sync
  • QR code integration for easy setup
  • Cross-device compatibility
  • Fast and consistent performance
Features
Read full description

Authenticator is an advanced authentication app built to provide secure and effortless two-factor authentication (2FA) and multi-factor authentication (MFA) for your online accounts. It enhances your digital security by generating time-based one-time passwords (TOTP) and OTP codes for any platform that supports 2FA. Designed as a reliable alternative to Google Authenticator, this app ensures strong protection for your personal and professional accounts. Whether you’re securing email, managing social media logins, accessing cryptocurrency exchanges, or logging into work platforms that require two-factor authentication, Authenticator keeps your credentials safe and easily accessible. It supports popular services like Google, Facebook, Instagram, Microsoft, Binance, and many others. Key Features: Secure Authentication: Create and manage your 2FA and TOTP codes compatible with thousands of online platforms. Fast and Consistent Performance: Quickly retrieve authentication codes, even when switching between multiple accounts. Encrypted Backup & Cloud Sync: Protect your auth data with end-to-end encryption and synchronize it seamlessly across all your iOS devices. QR Code Integration: Add new authenticator entries instantly by scanning QR codes with your device’s camera. Cross-Device Compatibility: Enjoy full synchronization and access to your MFA and TOTP codes on multiple devices. Download Authenticator now to strengthen your online security with simple, reliable, and powerful multi-factor authentication (MFA). Your trusted all-in-one auth solution — fast, secure, and always in sync. https://www.sanmobile.co/terms.html https://www.sanmobile.co/privacy.html

Screenshots

2FA Authenticator (2FAS)4 screens
Authenticator App4 screens

Verdict

The call

The clearest difference is review sentiment: 2FA Authenticator (2FAS) at 78% against Authenticator App's 25%. 2FA Authenticator (2FAS) also leads on in-app purchases (none vs 8) and ads (none vs shown). Authenticator App's advantage is update cadence (weekly vs monthly) and iOS requirement (15.1 vs 18.6). On price 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 App sells 8 in-app purchases, starting at $0.99 per 7 days. 2FA Authenticator (2FAS) asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

2FA Authenticator (2FAS) holds the better App Store score, 4.7 against 4.5. That said, the two scores are not equally well evidenced: 2FA Authenticator (2FAS) has 35K ratings behind it against 86, so its average is the more settled of the two. Written reviews point the same way: 78% of 2FA Authenticator (2FAS)'s written reviews are positive against 25% of Authenticator App's.

UpkeepUpdate frequency

2FA Authenticator (2FAS) ships an update monthly, Authenticator App weekly. The most recent releases landed on September 24, 2026 and September 22, 2026 respectively.

Scorecard8 real differences · 2 level
2FA Authenticator (2FAS) versus Authenticator App: the parameters behind the verdict, then further details
Parameter2FA Authenticator (2FAS)Authenticator App
PriceFreeFree
Rating4.7 (35K ratings) — better4.5 (86 ratings)
Positive reviews77.6% of reviews — better25.0% of reviews
Number of ratings35K — better86
Update frequencyMonthlyWeekly — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, Apple Watch — betteriPhone, iPod
Requires iOS18.615.1 — better
Further details — not scored
Size80 MB58 MB
Age rating4+4+
DeveloperTwo Factor Authentication Service Inc.SAN MOBILE

Customer experience

2FA Authenticator (2FAS)

All ratings35,190 ratings
Positive93.2%
Neutral2.0%
Negative4.8%
Written reviews710 reviews
Positive77.6%
Neutral5.5%
Negative16.9%

Authenticator App

All ratings86 ratings
Positive84.9%
Neutral3.5%
Negative11.6%
Written reviews8 reviews
Positive25.0%
Neutral0.0%
Negative75.0%

Bugs and requests

2FA Authenticator (2FAS)

Reported bugs

3 issues
  • Tokens disappearing after device changes
  • Push notification failures
  • Incompatibility with older devices

Requested features

5 requests
  • Alphanumeric passcode option
  • Custom icon uploads
  • Apple Watch app
  • Desktop/web app
  • Improved support and communication

Authenticator App

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

2FA Authenticator (2FAS)

No in-app purchases

8 purchases

Authenticator App

Subscriptions8
  • Authenticator 2FA Weekly Basic3 Days trial$0.997 Days
  • Autenticador 2FA Weekly Pre3 Days trial$7.997 Days
  • Authentication 2FA Weekly Plus3 Days trial$8.997 Days
Show 5 more
  • FreeOTP Authenticator Weekly Pro3 Days trial$9.997 Days
  • MFA Authenticator Monthly Basic$29.991 Month
  • Yearly Pre Subscription$39.991 Year
  • Yearly Plus Subscription$49.991 Year
  • Yearly Pro Subscription$59.991 Year

Questions

Is 2FA Authenticator (2FAS) free?
2FA Authenticator (2FAS) is free to download, with no in-app purchases.
Is Authenticator App free?
Authenticator App is free to download, with in-app purchases available.
Which has better reviews, 2FA Authenticator (2FAS) or Authenticator App?
2FA Authenticator (2FAS) is rated higher. 2FA Authenticator (2FAS) averages 4.7 out of 5 from 35K ratings, while Authenticator App averages 4.5 from 86 ratings.
Do 2FA Authenticator (2FAS) or Authenticator App have ads?
Authenticator App shows ads; 2FA Authenticator (2FAS) does not.
Which is updated more often, 2FA Authenticator (2FAS) or Authenticator App?
2FA Authenticator (2FAS) ships an update monthly, and Authenticator App weekly. Most recently, 2FA Authenticator (2FAS) was updated on September 24, 2026 and Authenticator App on September 22, 2026.

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