I know this is a question that's been asked a million times but I think it's good to keep track of new features for existing tools, ones which seem to have become stagnant and which ones we have tried and think we'll stick with.
In terms of rapid prototyping, I use InVision app but they seem to have stalled on development. One of the reasons I liked them was because they frequently released new features, now they seem to focus on other products which I'm not interested in, such as Craft. I tried to make the switch to Marvel but they too have stagnated. I would happily pay more for Marvel if they showed that they're keeping up with demand because I like their intuitive interface and InVision is expensive
As for tools that support more interaction and animation, I still haven't found one that is intuitive to use and allows for demonstration of all the features a website or app would realistically have. I don't really have time to code especially under tight deadlines, if I did I would use framer.
What tools do you use? Which are the easiest to learn? Which do you think you'll commit to until someone finally releases a tool that solves all of the problems we face?