(Standalone) applications for authentication codes (TOTP).
Aegis Authenticator (Android)
Raivo Authenticator (iOS)
Dashlane Authenticator (Android, iOS)
ESET Secure Authentication (Android, iOS)
FreeOTP Authenticator (Android, iOS)
Google Authenticator (Android, iOS)
Microsoft Authenticator (Android, iOS)
2fast – Two Factor Authenticator (Windows)
Password managers
Some password managers include an authentication feature, so you can use them for the authentication codes (TOTP). This is a list of such verified password managers:
KeepassXC (Windows, macOS, Linux)
Bitwarden (paid version only; Android, iOS, browser add-ons)
Apple Keychain (iOS, iPadOS, macOS)
Dashlane Password Manager (Android, iOS, browser add-ons)
Keepass2Android Password Safe (Android)
1password (Android, iOS, browser add-ons)
Proton Pass - Password Manager (Android, iOS, browser add-ons)