ProtoPie

ProtoPie is a prototyping environment built for designers who need their concepts to behave like real products rather than static screens. Instead of linking simple tap transitions, you assemble interACTions from triggers, responses, and conditions, so a prototype can respond to gestures, device sensors, voice input, and connected hardware. Teams use it to validate interaction ideas before committing engineering time to production code.

What it does

The tool lets you place design layers, then attach logic to them without writing code. You DeFine what starts an interaction, such as a tap, scroll, tilt, or sound, and what should hAPPen in response, like movement, scaling, color change, or a page jump. Variables and formulas add state, so prototypes can remember values and branch based on them. Because the resulting prototype runs at near-native speed, reviewers experience something close to the finished app.

Key capabilities

• no-code interaction logic: combine triggers, responses, and conditions to model complex flows.
• Sensor and input support: use device motion, microphone, camera, and other inputs to make dEMOs feel physical.
• Variables and formulas: store and compute values so interfaces react dynamically.
• Multi-device preview: test on phones, tablets, and desktops, and connect multiple devices in one scene.
• Hardware and IoT bridging: link prototypes to connected devices and external services via bridging.
• design tool import: bring in layers from common design files to preserve layout and assets.
• Collaboration and sharing: distribute playable prototypes through links or embed them in presentations.

Who it is for

Interaction designers, UX researchers, and product teams working on mobile apps, connected products, automotive interfaces, and other experiences where motion and feedback matter. It is also useful for design agencies presenting concepts to CLIents and for educators teaching interaction design principles.

How to get started

Download the desktop application, create a new pie, and import or draw your first screens. Start with a single trigger and response to underStand the logic model, then add variables and conditions as confidence grows. Sample projects and documentation help newcomers learn patterns quickly. Sharing a prototype is usually a matter of generating a link and choosing playback settings.

Pricing and access

ProtoPie Generally offers a free tier with limits on prototypes and collaboration, plus pAId plans for indiViduals and teams that unlock more projects and advanced sharing. Exact tiers, limits, and prices may vary by region and change over time, so check the official site for current terms before budgeting. trial options may also be available; confirm eligibility directly with the vendor.