ProtoPie Alternative
ProtoPie is built for high-fidelity prototypes with sensors and device APIs.
Direct Answer
ProtoPie is one of the best tools for high-fidelity prototypes: real device sensors, conditional logic and testing on a phone. Those prototypes are not production components, though, and the interaction has to be rebuilt for the app. ExodeUI uses a similar interaction model but ships an open .exode file that runtimes play in React, SwiftUI, Flutter and more. Use ProtoPie to test an idea; use ExodeUI to ship the interaction.
Last updated: October 2026 · Affiliation disclosure: written by the ExodeUI team · ProtoPie facts from public sources, reviewed quarterly.
What ProtoPie Genuinely Does Well
- Excellent device sensors and hardware APIs for realistic prototypes
- Conditional logic and variables that go beyond click-through flows
- Test on real phones with the ProtoPie app
- MCP integration for AI-assisted prototyping
1. The Core Philosophy
ProtoPie: "Prototype the feeling. Rebuild it later."
ProtoPie is optimized for fidelity in testing. Sensors, device APIs and conditional logic make a prototype feel real, but the deliverable is a prototype file, not a component your app can render. The production build is a second implementation.
ExodeUI: "One file from first idea to production."
ExodeUI keeps the interaction model and removes the rebuild. States, inputs, triggers and spring physics live in the same open file that the runtime plays in production, so the version users test is the version that ships.
ProtoPie vs ExodeUI: Feature Matrix
Competitor data from public sources, as of October 2026.
| Capability | ProtoPie | ExodeUI |
|---|---|---|
| Output | Prototype file played in ProtoPie apps | Open .exode JSON played by runtimes |
| Sensors and device APIs | Extensive | Inputs and events from app code |
| State logic | Variables, conditions and triggers | Visual state machines and node logic |
| Production integration | Rebuild in app code | Runtime package for React, Vue, Svelte, Angular, Solid, React Native, SwiftUI, Flutter and JavaScript |
| Physics | Built-in interaction physics | Spring physics, drag and collisions |
| AI agents | MCP access | MCP server with 100+ tools |
| Best for | User testing and hardware prototypes | Production UI and components |
| Pricing | Free (2 prototypes, 8 scenes, 50MB); Basic $25/month; Pro $47/editor/month | Free Community; Professional $29/month |
2. A prototype file vs. a runtime file
// ProtoPie: the prototype runs in the ProtoPie player
// (production UI is rebuilt by the app team)
// ExodeUI: the same file runs in the product
<ExodeUICanvas
src="/onboarding.bexode"
inputs={{ step, hasPermission }}
onTrigger={(name) => name === 'next' && goNext()}
/>3. Pricing, Honestly Compared
ProtoPie has a free plan limited to two prototypes, eight scenes and 50MB, Basic at $25/month for one seat, and Pro at $47/editor/month with MCP access. Enterprise is custom and starts at three seats. ExodeUI is free on Community and $29/month on Professional. ProtoPie is priced for prototyping teams; ExodeUI is priced as the design tool that also ships.
Competitor pricing from their public pricing pages, as of October 2026 — verify before purchase decisions.
Frequently Asked Questions
Is ProtoPie a Rive alternative?
For prototyping interactions, yes. ProtoPie focuses on sensors, device APIs and fidelity for user testing. Rive and ExodeUI focus on interactive graphics that ship through a runtime.
Does ProtoPie export production code?
No. ProtoPie prototypes run in the ProtoPie player and are rebuilt in production code. Some handoff tooling exists, but the interaction is not shipped as a component.
Can ExodeUI replace ProtoPie?
For production UI, yes. ExodeUI ships the interaction through runtimes, so the tested version can be the shipped version. For sensor-heavy hardware prototypes and formal usability testing, ProtoPie is often the better tool.
How much does ProtoPie cost?
ProtoPie has a free plan with two prototypes, eight scenes and 50MB. Basic is $25/month for one seat, Pro is $47/editor/month with MCP access, and Enterprise is custom with a three-seat minimum. Check ProtoPie's pricing page before buying.