Flinto is a Mac app used by top designers around the world to create interactive and animated prototypes of their app designs.

The 2.0 release includes a new feature called the Behavior Designer that allows for the creation of micro-interactions that happen within screens. This version also includes a redesigned, easier-to-use Transition Designer and a way to share transitions and behaviors between Flinto documents...and more.

I am trying to make a decision between Flinto and Principle. Which one is better?