Ente Auth
Our pickOpen source authenticator with encrypted backup.
Best Twilio Authy alternatives
The best Twilio Authy alternative is Ente Auth: Open source authenticator with encrypted backup. Other good options are 2FAS, Google Authenticator, Microsoft Authenticator.
2FAS
GoodSimple open source authenticator.
Google Authenticator
GoodBasic authenticator, syncs to your Google account.
Authenticator with Microsoft account backup.