OTPClient is a security and privacy application that helps users protect their online accounts by providing a one-time password (OTP). It works by generating a unique and secure password each time a user attempts to log into their account. The OTP is sent to the user's mobile device as a text message or as an email. The OTP is only valid for a short period of time and must be entered into the login form before it expires. This helps to ensure that only the user has access to their account, as the password is only valid for a single use. The OTPClient app also provides additional security features, such as two-factor authentication and biometric authentication, which make it more difficult for hackers to gain access to users' accounts.
Authy
FreeOTP
andOTP
Google Authenticator
WinAuth
YubiKey
Open Authenticator
Authenticator Plus
Obsidian - Elegant OTP Authenticator
Hydro Raindrop
FreeOTP+ (fork of FreeOTP)
Yandex.Key
Discontinued It has been removed from Play Store.