other Magic Patterns co-founder here —

to add on to Alex's answer above, we also differ in that we have a lot of features focused around brainstorming / exploring ideas, versus just spinning up a fullstack app. For example, we have a "Commands" feature that lets you get four variations (that are guaranteed to be different!) of a prompt.

We also have a Chrome extension that lets you import designs from your existing product to ideate on top of existing content.