Think of an interaction as a conversation between your product and your user... if the conversation is boring, your user will eventually leave ... Without interactions, there wouldn’t be any delight in the experience. - The 5 Pillars of Interaction Design — Medium

This software is a clever mix between Sketch, Keynote, Flash and After Effect (plus some bonus features specifically for interactive prototypes)... Easily creating tap transitions from one screen to another is, to me, the core of the software. - Principle : the prototyping tool you’ve got to try — STARTUPS + WANDERLUST + LIFE HACKING — Medium

"an inspiring design experiment... Earth: A Primer, a new interactive book for the iPad... instead of simply telling you about geological processes, it actually lets you control them. Each topic’s page pairs text and a simulation... Like a deity in training, you can sculpt mountains, summon rain storms, and move tectonic plates with your fingertip…