Comparison

2FA Authenticator (2FAS) vs Auth Authenticator

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)

This app provides an easy and secure way to enable two-factor authentication for your online accounts. It offers features like token restoration, biometric protection, and offline functionality to keep your personal data and passwords safe from cyber threats.

Highlights
  • Two-factor authentication
  • Token backup and restore
  • Biometric app protection
  • Open-source and transparent
  • Cross-device sync
  • Offline functionality
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

Auth Authenticator

Secure your online accounts with this Two-Factor Authentication (2FA) app. It generates time-based one-time passwords (TOTP) and offers encrypted backups, multi-device sync, and offline access. Protect your accounts from unauthorized access with robust security features.

Highlights
  • Encrypted iCloud Backup
  • Apple Watch Support
  • Multi-Device Sync
  • Offline Access
  • Biometric & PIN Lock
  • Quick Setup
  • TOTP Security
Features
Read full description

Auth Authenticator – Secure 2FA with iCloud Backup & Apple Watch Support Strengthen your account protection with Auth Authenticator, the fast, reliable, and secure Two-Factor Authentication (2FA) app trusted by thousands of users. Generate time-based one-time passwords (TOTP) and keep your online accounts safe from unauthorized access. Whether you're securing your Google, Facebook, Instagram, Microsoft, Amazon, or other important accounts, Auth Authenticator offers an easy, secure, and convenient way to manage all your 2FA codes. Powerful Features of Auth Authenticator: * iCloud Encrypted Backup 
Securely store your 2FA accounts with automatic iCloud backup. Recover your codes anytime, even if you lose or change your device. * Apple Watch Support 
View your verification codes right from your Apple Watch — instant access without pulling out your phone. * Multi-Device Sync 
 Seamlessly sync your 2FA accounts across multiple Apple devices, ensuring you’re always connected. * Offline Access Anywhere
 Generate one-time passwords even when offline or traveling — no internet connection required. * Quick & Easy Setup
 Add accounts via QR code scan or manual key entry in seconds. * Biometric & PIN Lock Protection 
Keep your codes safe with Face ID, Touch ID, or a secure PIN. * Works with All Popular Platforms
Compatible with Google, Facebook, Instagram, Microsoft, Amazon, Twitter, LinkedIn, GitHub, Dropbox, and any app or service supporting TOTP 2FA. * Time-Based One-Time Password (TOTP) Security 
Industry-standard TOTP algorithm ensures your codes refresh automatically every 30 seconds for strong, reliable protection. * No Ads, Fully Private 
Ad-free, privacy-first design — your information stays with you. Why risk your accounts?
Get Auth Authenticator today — the trusted, feature-packed 2FA app with iCloud Backup, Apple Watch support, and multi-device sync. Information About Subscription You can cancel your subscription or free trial anytime by cancelling your subscription through your iTunes account settings, or it will automatically renew. This must be done 24 hours before the end of the free trial or any subscription period to avoid being charged. Subscription with a free trial period will automatically renew to a paid subscription. Please note: any unused portion of a free trial period (if offered) will be forfeited when you purchase a premium subscription during the free trial period. Subscription payments will be charged to your iTunes account at confirmation of your purchase and upon commencement of each renewal term. For more information, please see our Privacy Policy and Terms of Use. Terms of Use: https://sites.google.com/view/auth-terms/ Privacy Policy: https://sites.google.com/view/auth-privacy/

Screenshots

2FA Authenticator (2FAS)4 screens
Auth Authenticator4 screens

Verdict

The call

The clearest difference is in-app purchases: 2FA Authenticator (2FAS) at none against Auth Authenticator's 3. 2FA Authenticator (2FAS) also leads on ratings volume (36K vs 216) and update cadence (monthly vs every 5 months). Auth Authenticator's advantage is iOS requirement (16 vs 18.6). On price, 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. Auth Authenticator sells 3 in-app purchases, starting at $9.99 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 4.4. That said, the two scores are not equally well evidenced: 2FA Authenticator (2FAS) has 36K ratings behind it against 216, 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 57% of Auth Authenticator's.

UpkeepUpdate frequency

2FA Authenticator (2FAS) ships an update monthly, Auth Authenticator every 5 months. The most recent releases landed on November 8, 2026 and November 3, 2026 respectively.

Scorecard7 real differences · 3 level
2FA Authenticator (2FAS) versus Auth Authenticator: the parameters behind the verdict, then further details
Parameter2FA Authenticator (2FAS)Auth Authenticator
PriceFreeFree
Rating4.7 (36K ratings) — better4.4 (216 ratings)
Positive reviews77.5% of reviews — better56.8% of reviews
Number of ratings36K — better216
Update frequencyMonthly — betterEvery 5 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, Apple WatchiPhone, iPad, iPod, Apple Watch — better
Requires iOS18.616 — better
Further details — not scored
Size81 MB20 MB
Age rating4+4+
DeveloperTwo Factor Authentication Service Inc.Appios Bilisim

Customer experience

2FA Authenticator (2FAS)

All ratings35,779 ratings
Positive93.1%
Neutral2.0%
Negative4.8%
Written reviews726 reviews
Positive77.5%
Neutral5.4%
Negative17.1%

Auth Authenticator

All ratings213 ratings
Positive86.4%
Neutral3.8%
Negative9.9%
Written reviews44 reviews
Positive56.8%
Neutral6.8%
Negative36.4%

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

Auth Authenticator

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

2FA Authenticator (2FAS)

No in-app purchases

3 purchases

Auth Authenticator

Subscriptions3
  • Weekly Subscription Plans3 Days trial$9.997 Days
  • Monthly Subscription Plans$14.991 Month
  • Yearly Subscription Plans3 Days trial$49.991 Year

Questions

Is 2FA Authenticator (2FAS) free?
2FA Authenticator (2FAS) is free to download, with no in-app purchases.
Is Auth Authenticator free?
Auth Authenticator is free to download, with in-app purchases available.
Which has better reviews, 2FA Authenticator (2FAS) or Auth Authenticator?
2FA Authenticator (2FAS) is rated higher. 2FA Authenticator (2FAS) averages 4.7 out of 5 from 36K ratings, while Auth Authenticator averages 4.4 from 216 ratings.
Do 2FA Authenticator (2FAS) or Auth Authenticator have ads?
Neither 2FA Authenticator (2FAS) nor Auth Authenticator shows ads.
Which is updated more often, 2FA Authenticator (2FAS) or Auth Authenticator?
2FA Authenticator (2FAS) ships an update monthly, and Auth Authenticator every 5 months. Most recently, 2FA Authenticator (2FAS) was updated on November 8, 2026 and Auth Authenticator on November 3, 2026.

Other comparisons