Time-based One-Time Password (TOTP) authentication for Google and more on iOS7
I use two-step authentication for both my GMail and Google Apps accounts as well as dropbox.
Up to now I've been using Google's iOS authenticator app - but this app has issues in iOS7
- It forgets accounts when you restart the phone
- You can no longer edit the descriptive name for each account so you have no idea which code is which account
- Lately it's stopped scanning barcodes too
The first one is of course the most serious.
After some googling I found that there are other TOTP app's out there. I settled on Duo Mobile
After following the third-party accounts page I had both my google accounts and my dropbox account in the app and it's working nicely.