Duo vs. 2FAS
There are few different two-factor authentication app options on the market. So, we've decided to compare our app with some of the most popular alternatives, which you can read about below.
Check out why 2FAS may be your best option for keeping your accounts and services safe by reading through our comparison with the Duo app.
![[object Object]](/_next/image/?url=%2F_next%2Fstatic%2Fmedia%2Fduo.de2c7de4.png&w=992&q=100)
![[object Object]](/_next/image/?url=%2F_next%2Fstatic%2Fmedia%2Fduo-dark.6184ede3.png&w=992&q=100)
Head-to-Head Comparison:
Duo vs. 2FAS
Check the table below to see similarities and differences between our solution and the two-factor authentication app from Duo.
| Comparison | ||||
|---|---|---|---|---|
| IOS | ANDROIDAND | IOS | ANDROIDAND | |
| Open source | ||||
| Customer case | ||||
| Support | ||||
| Onboarding | ||||
| Instruction manuals | ||||
| Privacy | ||||
Geolocation privacy | ||||
E-mail account privacy | ||||
Phone number privacy | ||||
| Security | ||||
| Backup | ||||
| Sync | ||||
| PIN / biometrics | ||||
| Extra features | ||||
HOTP | ||||
| Transfer tokens | ||||
| Token customization | ||||
| Widgets | ||||
| Search tokens | ||||
| Token copy | ||||
| Token groups | ||||
Theme color | ||||
Next token feature | ||||
Extended time tokens | ||||
| 8-digit tokens | ||||
Additional SHA variations | ||||
Trash | ||||
| Browser Extension | ||||
| Style list | ||||
| Import from external app | ||||
Updated: 05/30/2025 / 2FAS ver: 5.4.9 (Android), 5.3.13 (iOS) / Duo ver: 4.88.0 (Android), 4.88.0 (iOS)
Key Features of 2FAS
2FAS Backup
Even if you lose your mobile device, you can recover service keys because they are stored in a secure cloud backup.
Tokens are stored offline
2FAS generates Tokens that are stored on your device without internet access. It adds another layer of security.
Sync across mobile devices
Log in to your favorite accounts and services using different mobile devices (with the same operating system) simultaneously.
Biometric authentication
Confirm your identity using Touch ID / Face ID (iOS) or fingerprint (Android) for faster and even more secure logging.
Free and available on Android & iOS
Find our application in Google Play or the App Store.
Compatibility
2FAS is compatible for example with:
Amazon
Binance
Coinbase
Kraken
Robinhood
Bitwarden
Poloniex
Microsoft
Crypto.com
Sony / PS
Bitfinex
Discord
Rockstar
Epic Games
Why people love 2FAS Auth
4.7
4.6
If you have some questions, check out our Help Center or contact us.