Is my account "gmail" or "GApp"?

I understand that prime upgrade pricing depends on whether I have a gmail or a gapp account. Presumably, gmail accounts are for individuals and are non-commercial, while gapp accounts tend to be commercial.

I have an individual Google account which used to have an associated gmail address, but I cancelled my gmail service some time ago. My email address for the Google account is of the form user@host.com. I am not a commercial user, and I am not using Google Apps.

So can I be a gmail account for purposes of upgrading?

Generally, if the domain is not @gmail.com or @googlemail.com then it’s a GApp account. If you’re on a gmail.com domain under Plus, you should have been upgraded for free already. If you’re on a gmail.com domain under Pro/Business, you will need to check eligibility for upgrade by logging in insynchq.com/upgrade