Bitwarden Authenticator is a standalone app that is available for everyone, even non-Bitwarden customers.
In its current release, Bitwarden Authenticator generates time-based one-time passwords (TOTP) for users who want to add an extra layer of 2FA security to their logins.
There is a comprehensive roadmap planned with additional functionality.
Available for iOS and Android
TOTP is a defined standard, specifically RFC 6238.
But I still have 3 different apps on my phone so that I can get on to various customer VPNS. 🤷♂️
Because they use proprietary algorithms not TOTP.