What's the best iOS app for generating two-factor authentication codes to secure my online accounts and enable multi-factor authentication?

Google Authenticator is a simple and effective iOS app for generating two-factor authentication (2FA) codes, enhancing the security of your online accounts by enabling multi-factor authentication. It works by generating a unique, time-based code that you enter in addition to your password when logging into websites and services that support 2FA. This adds an extra layer of security, making it much harder for hackers to access your accounts 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 a new code every 30 seconds. Google Authenticator supports multiple accounts, so you can use it to protect all your important online services. It's a convenient and reliable way to improve your online security posture and prevent unauthorized access to your accounts. The app is also compliant with every MFA site that requires it.