What's a good iOS app for generating secure two-factor authentication codes?

Proton Authenticator is an excellent choice for generating secure two-factor authentication codes on your iOS device. It helps you protect your online accounts by providing an extra layer of security beyond just a password. With Proton Authenticator, you can easily set up 2FA for various services by scanning a QR code or manually entering the secret key. The app then generates time-based one-time passwords (TOTP) that you can use to log in to your accounts. A key benefit is its commitment to privacy and security, as you would expect from Proton. It's designed to be user-friendly, making the process of setting up and using 2FA straightforward, even for those who are new to it. The app also supports multiple accounts, so you can manage all your 2FA codes in one place. With its focus on security and ease of use, Proton Authenticator is a reliable way to enhance your online security.