ProtoPie review

ProtoPie is the specialist on this list: it does not try to be a design tool, it focuses on making interactions behave like the finished product. Designs come in through plugins for Figma, Sketch and Adobe XD, and ProtoPie then adds interaction logic, multi-device prototypes and hardware links. Its own solution pages cover automotive HMI, smartwatches, TV, games and medical devices, and the pricing table lists native hardware and Arduino integrations through the Connect add-on. The free plan allows 2 cloud prototypes with 8 scenes each, which is enough to learn the tool. Basic at $25 per month billed yearly is a single seat with 20 prototypes, shareable links and no watermark. Pro at $47 per editor per month unlocks unlimited prototypes, team libraries, local saving and unlimited handoff recordings, while Enterprise adds private servers, SSO and custom hardware integrations from 3 seats. The cost is higher than general design tools, so it pays off when interaction fidelity is the job.

Who it is for

Interaction designers who need sensor, multi-device or hardware-connected prototypes that go beyond screen-to-screen links.

Price

Free plan with 2 prototypes; Basic $25 per month for 1 seat and Pro $47 per editor per month, billed yearly.

Basic $25 /mo 1 seat only
Quoted from the vendor pricing page on November 9, 2026.

Key features

• Multi-device prototyping and interaction logic
• Native hardware and Arduino integrations through Connect
• Plugins that import designs from Figma, Sketch and Adobe XD
• Developer handoff with handoff recordings and Dev View
• ProtoPie AI for generating interactions, plus an optional User Testing add-on

Strengths and weaknesses

• Strength: Free plan with 2 cloud prototypes and 8 scenes per prototype
• Strength: Covers automotive, smartwatch, TV and game interfaces as well as web and mobile
• Strength: Pro adds unlimited prototypes, team libraries and local saving
• Weakness: Basic is limited to 1 seat and 20 prototypes
• Weakness: Hardware connectivity beyond trials needs the Connect add-on
• Weakness: User Testing is an add-on sold on annual plans only

Key facts

• Free plan: 2 prototypes, 8 scenes each, 50MB cloud storage
• Basic: $25 per month, 1 seat, billed yearly
• Pro: $47 per editor per month, billed yearly
• Enterprise: Custom, minimum 3 seats
• Design tool plugins: Figma, Sketch, Adobe XD

Where it ranks

ProtoPie is No. 3 in our Best Prototyping Tools verdict.