Authy
Authy really is the gold standard as far as authenticator apps goes—it works with a host of different accounts and comes packed with just about every feature you can think of for an app like this. Everything gets backed up to the cloud securely, so you can swap between devices easily or even use multiple devices to get access to your 2FA-protected accounts.
Besides the ease of use and the extensive feature set on offer here, Authy is a treat to look at as well, with all the accounts you’ve added shown in a grid at the bottom of the main screen—just tap on an icon to get the necessary code. Most of the major accounts are supported here as well, including Google, Microsoft, Facebook, Dropbox and more.
