what is difference between Google Authenticator and Authy Authenticator ?

 Google Authenticator and Authy are both two-factor authentication (2FA) apps that can be used to provide an additional layer of security for your online accounts. However, there are some differences between the two:

1. Platform availability: Google Authenticator is available on Android and iOS devices, while Authy also has a desktop version for Windows, Mac, and Linux.

2. Cloud Backup: Authy allows you to backup your 2FA codes to the cloud, so you can retrieve them even if you lose your phone. Google Authenticator does not have this feature.

3. Multi-device support: Authy allows you to use the same account on multiple devices, which means you can receive 2FA codes on multiple devices at once. Google Authenticator is limited to one device per account.

4. Security: Authy uses end-to-end encryption to protect your 2FA codes, while Google Authenticator uses a time-based one-time password (TOTP) algorithm.

5. App lock: Authy has an option to lock the app with a passcode or fingerprint, Google Authenticator doesn't have this feature.

Both apps are widely used and considered secure, so the choice between the two may depend on your specific needs and preferences.