2FAS — #3 Alternative to Authy

Name: 2FAS
Rating: 4.89 (800 reviews)

Sleek open-source mobile authenticator with optional encrypted iCloud/Google Drive sync

2FAS requires zero account signup, encrypts backups inside your own iCloud or Google Drive account, and pairs with an open-source browser extension for 1-click desktop 2FA autofill.

License: GPL-3.0 · Pricing: Free & Open Source · Compare all Authy alternatives · Official Website