ProtoPie

ProtoPie is a professional prototyping tool that lets designers create high-fidelity, interactive prototypes without writing code. It specializes in simulating complex interactions across multiple devices, from smartphones and tablets to automotive interfaces and smart TVs. Designers can import their work from popular design tools like Figma, Sketch, and Adobe XD, then add dynamic behaviors using variables, formulas, and logic systems.

The tool stands out with its ability to create realistic prototypes that respond to device sensors like camera, microphone, and tilt controls. The ProtoPie AI beta feature adds artificial intelligence capabilities to assist with prototyping tasks. Unlike simpler prototyping tools, ProtoPie handles complex multi-device scenarios where different screens need to communicate with each other, making it ideal for testing connected experiences.

UX designers and product teams at companies like Meta, Microsoft, and BMW use ProtoPie to create convincing prototypes for user testing and stakeholder presentations. It's particularly valuable for automotive UX design, smart home interfaces, and any project requiring realistic device interactions before development begins. The free version includes interaction recordings and shareable links, making it accessible for individual designers and teams.