BTW Fold3 is far more than the Revolutionary War. It is focused more or less primarily on military records, but it does have some City Directories and other items.
It is particularly useful for Confederate Civil War era documents. I have not need to search for many Union documents, as my Yankee branch arrived mostly after the 1860s. The few times I've tried Fold3 for Union records, I was disappointed, that might just be the area I was searching.
It also has more recent records pertaining to World War II.
Hope this helps.