ContentBot and Nichesss are the two AI content writing apps that give you UNLIMITED runs, so grab this while you can! I was already using ContentBot before it came onto AppSumo, and I liked it enough to be paying monthly, so getting an LTD offer with unlimited credits is something I didn't want to pass up.

It's very easy to use, you just give it a little input and it will generate all sorts of copy for you. Highlights of ContentBot are that they will automatically email you daily outputs that you customize, and it's also a WordPress plugin. (You can use it like a normal website app though, which is how I've been using it.)