The built-in TOTP in Bitwarden password manager is only available to premium Bitwarden subscribers, requires you to have a Bitwarden account, and stores your TOTP codes in Bitwarden's servers.
This standalone app is available for free, can be used without an account, and the TOTP codes are only stored locally (or through your phone's native backup system).
Some people dislike the idea of storing TOTP codes in the same location as passwords, so it seems this helps provide those people with that separation, while still using Bitwarden products (which tbh is cool with me - a lot of the other TOTP apps on the appstores suck).
> The built-in TOTP in Bitwarden password manager is only available to premium Bitwarden subscribers, requires you to have a Bitwarden account, and stores your TOTP codes in Bitwarden's servers.
if you selfhost (eg with vaultwarden) you get all the pay features for free
This standalone app is available for free, can be used without an account, and the TOTP codes are only stored locally (or through your phone's native backup system).
Some people dislike the idea of storing TOTP codes in the same location as passwords, so it seems this helps provide those people with that separation, while still using Bitwarden products (which tbh is cool with me - a lot of the other TOTP apps on the appstores suck).