[peacemaker]

+1 for Authy, though I keep the backups and multi-device turned on for convenience.

My old phone died and I had no way of getting into some of my 2FA secured accounts a while back and it was a wakeup call that eventually led to using Authy.

[kawsper]

Our org is using a mix of Google Authenticator and Authy, but I am currently trialing https://2fas.com/ which is an opensource application that work with iOS backups.