So far, I have 2FA set up for Google and my iCloud account. On another site I visited, someone recommended Authy as a more secure alternative to having your code sent to you over SMS. The fact that Authy is free troubles me.
The developer has a very professional web site, etc., and something/somebody has to pay for that. Is the Authy developer culling something from its users and selling that info?
Are readers of this site using it? Recommend it?