Now our service Authy and it's Tokens are completely different. If you sign-up to Authy.com and use our Tokens, those are:
1. Full 256 bits secret seeds.
2. They are never backed-up.
3. Guaranteed to only exist on 1 phone at any given time.
4. We not only regenerate new tokens for new device, we also allow 1 click remote reset of the device tokens.
5. We have a huge number of improvements over Google Authenticator.
7. Tokens are not 6 but 7 digits long.
This version added support for legacy Authenticator Tokens. The existing Authy tokens like CloudFlare, DNSimple etc are not limited to the Google Authenticator addon.