What's the best Android app for generating two-factor authentication codes to secure my online accounts?

Google Authenticator is a great app for generating two-factor authentication (2FA) codes, adding an extra layer of security to your online accounts. It helps protect your accounts by requiring a unique code from your phone in addition to your password when you log in. This makes it much harder for hackers to gain access, even if they know your password. To use Google Authenticator, you typically scan a QR code provided by the website or service you want to protect, or manually enter a setup key. The app then generates time-based, one-time passwords (TOTP) that you enter on the login screen. Google Authenticator supports multiple accounts, so you can manage all your 2FA codes in one place. It also offers a feature to transfer your accounts to a new phone, ensuring you don't lose access to your accounts when you upgrade your device. By using Google Authenticator, you significantly reduce the risk of unauthorized access to your sensitive online information.