Sketch's prototyping for just simple transition from screen-to-screen, Principle for any basic animations, and Framer Studio (not X) for anything more complex than that. I would use XD if not for that fact that it's layer styles are still barely enough for anything more than basic shapes.
Thanks! Sketch really is the go to tool. Did you try Framer X. Some people seem very impressed but then others are not so happy with it at all. As a first iteration, I think it is pretty good. Though, they have a long way to go.
Sketch's prototyping for just simple transition from screen-to-screen, Principle for any basic animations, and Framer Studio (not X) for anything more complex than that. I would use XD if not for that fact that it's layer styles are still barely enough for anything more than basic shapes.