I just changed phones and found this really simple. You can just store a phone number with Google and receive an SMS key if you forgot to print off a key before changing phones.
Everything seems to be working pretty well for me and I noticed improvements since last using the app 1+ years ago, but obviously can't guarantee it's still being updated.
Everything seems to be working pretty well for me and I noticed improvements since last using the app 1+ years ago, but obviously can't guarantee it's still being updated.