Hello Oldguy5q,
Welcome to the QuickBooks Community. I'll be glad to share more info about managing the QuickBooks subscriptions so you're well equipped with the right info.
QuickBooks Online is cloud-based program that requires an internet connection in order to function. QuickBooks Desktop is a different program as the data is stored locally on the computer, hence, it needs no internet connection. You're more than welcome to ask other questions. I'm here to steer you in the right direction.