I’ve tried Authy, and I’ve tried 1Password for two factor authentication. Authy is meh. 1Password is really nice, but the two factor codes are so buried it’s a pain in the ass to get to them.
And then there’s Lockdown and its simplicity is awesome. On the main screen I can see all the codes: boom. If I drill down I can see the current code AND the next code. That last bit is really the killer feature for me. It also works on the Apple Watch.
Home screen app for me. Well done.