Keeping custom sheet after Roll20 Pro resiliation

I've been looking to create a Custom sheet for a friend's homebrew system, but I have a big question I know that we'd need a roll20 pro subscription is order to acess and edit a custom sheet, but what about simply playing with it. Will it revert to the basic "no sheet"  if I cancel the subscription, or will we be able to use it (without being able to edit it)?

You'll be able to keep using it. You won't be able to make any more changes to it, and can't copy it. My advice in this situation: make several copies of the campaign before the subscription  runs out, so you can have backup campaigns and other games using the same sheet.

Oh, thanks for the advice! It's gonna be helpful