iPhone Apps to Interactive Prototyping

Adobe XD is a powerful vector-based user experience design tool developed by Adobe. It is designed for creating prototypes for web and mobile applications with features like interactive mockups, animation, and responsive design capabilities. XD facilitates collaboration and sharing of design specs.

ProtoPie is a powerful prototyping tool that allows designers to create highly interactive prototypes without writing any code. It enables realistic representation of user interfaces and experiences by allowing users to define complex interactions using a timeline-based approach and sensor inputs.