Beaverlicious Patreon is a place to pledge monthly/per content item support; not for one specific product, but for whatever the developer pledges to spend their time doing. Could be creating funny videos, making games, drawing comics, & etc.
I'll sum up the basic principles of each in some random example that comes into my head:
Kickstarter "Ninja Comic Vol. 1" - Pledge A is $10 in return for the printed collection when it is completed
Patreon "Ninja Comic" - Pledge A is $1 per comic strip completed in return for some special pledger-only preview perks
Edit: there's a bit more to the system, of course, but I think you get the picture. Each has its own perks. One is like supporting the creator, and one is like supporting the product.