2FA Authenticator (2FAS) vs Auth
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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
Auth
Enhance your online security with this app that generates time-based one-time passwords. Protect your accounts from unauthorized access by enabling two-factor authentication and scanning QR codes. Secure your digital life with robust encryption and convenient backup options.
- Generates one-time tokens
- Two-factor authentication
- Encrypted vault
- Password/biometric unlock
- Supports HOTP and TOTP
- Automatic iCloud backups
- Multiple entry methods
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This app generates one-time tokens on your device which are used in combination with your password. This helps to protect your accounts from hackers, making your security bulletproof. Just enable the two-factor authentication in your account settings for your provider, scan the QR code provided and you're good to go! Main Features ◆ Encrypted, can be unlocked with a password or Touch/Face ID ◆ Supports industry standard algorithms: HOTP and TOTP ◆ Supports Supports 6/7/8 digits & SHA1/SHA-256/SHA-512 ◆ Supports automatic backups of the vault to iCloud ◆ Lots of ways to add new entries - Scan a QR code or an image of one - Enter details manually - Import from other popular authenticator apps ◆ Organization - Alphabetic/custom sorting - Custom or automatically generated icons - Advanced entry editing - Search by name/issuer Terms of Use: https://653a45caedf4b.site123.me/terms-of-use Privacy Policy: https://653a45caedf4b.site123.me/privacy-policy
Screenshots
Verdict
The clearest difference is rating: 2FA Authenticator (2FAS) at 4.7 against Auth's 4.2. 2FA Authenticator (2FAS) also leads on in-app purchases (none vs 2) and ads (none vs shown). Auth's advantage is review sentiment (87% vs 78%) and iOS requirement (15.0 vs 18.6). On price, update cadence 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
Both are free to download. Auth sells 2 in-app purchases, starting at $3.99 per 7 days. 2FA Authenticator (2FAS) asks for nothing beyond the download.
2FA Authenticator (2FAS) holds the better App Store score, 4.7 against 4.2. That said, the two scores are not equally well evidenced: 2FA Authenticator (2FAS) has 35K ratings behind it against 365, so its average is the more settled of the two. Written reviews complicate that: 78% of 2FA Authenticator (2FAS)'s written reviews are positive against 87% of Auth's, so the app with the better star average is not the one people write more warmly about.
2FA Authenticator (2FAS) ships an update monthly, Auth every 2 weeks. The most recent releases landed on October 3, 2026 and September 30, 2026 respectively.
| Parameter | 2FA Authenticator (2FAS) | Auth |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (35K ratings) — better | 4.2 (365 ratings) |
| Positive reviews | 77.6% of reviews | 87.3% of reviews — better |
| Number of ratings | 35K — better | 365 |
| Update frequency | Monthly | Every 2 weeks — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Requires iOS | 18.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 80 MB | 10 MB |
| Age rating | 4+ | 9+ |
| Developer | Two Factor Authentication Service Inc. | 婷 兰 |
Customer experience
2FA Authenticator (2FAS)
Auth
User reviews
2FA Authenticator (2FAS)
From 35K App Store ratingsWhat we love
- 🚀 Efficient and fast
- 🔒 Secure and private
- 👍 Simple and intuitive UI
- 💡 Customizable icons and folders
- 🔒 iCloud backup and sync
Room to improve
- 🐛 Occasional bugs and crashes
- 🔒 Lack of password/PIN protection
- 🕰 No Apple Watch app
- 🐛 Issues with push notifications
- 🕰 Missing desktop/web app
Auth
From 365 App Store ratingsWhat we love
- 🔒 Robust security features
- 👍 User-friendly interface
- 💡 Convenient multi-device sync
- 🚀 Reliable performance
- 🔒 Secure backup and recovery options
Room to improve
- 🐛 Frequent ads disrupting usage
- 💰 Paid premium version required for ad-free experience
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
Reported bugs
2 issues- Ads interfering with account setup
- Occasional crashes or freezes
Requested features
2 requests- Dark mode option
- Improved free tier with fewer ads
In-app purchases
2FA Authenticator (2FAS)
No in-app purchases
Auth
- Weekly premium$3.997 Days
- Yearly premium$49.991 Year
Questions
Is 2FA Authenticator (2FAS) free?
Is Auth free?
Which has better reviews, 2FA Authenticator (2FAS) or Auth?
Do 2FA Authenticator (2FAS) or Auth have ads?
Which is updated more often, 2FA Authenticator (2FAS) or Auth?
Other comparisons
