In episode two, John and Dennis discuss pros and cons of the latest and greatest prototyping tools, organized into four levels based on the learning curve and speed of delivery. They then rank their top 3 favorite prototyping tools.
Level 1: Paper Prototyping (Free), POP: Prototyping on Paper iOS/Android App (Free)
Level 2: InVision (Freemium... depends on who you ask), Keynote ($20), Axure ($495 or $29/mo), Marvel (Freemium or $14/mo)
Level 3: Hype ($99), Principle ($99), Flinto ($99), Animate CC ($19/mo), After Effects ($19/mo)
Level 4: Origami (Free), Framer ($15/mo)