Prototo vs ProtoPie.
ProtoPie is a canvas-based tool for high-fidelity interactions, played on phones through the ProtoPie Player app. Prototo is prompt-based: Claude Code or Codex builds a native iOS app, so scrolling, keyboards, sheets and system materials are the real iOS ones, and you share it as a link that opens in the free Prototo app.
| Prototo | ProtoPie | |
|---|---|---|
| Runs natively on a real iPhone from a link | Yes, native iOS components | Plays on device in ProtoPie Player, rendered by ProtoPie |
| How you design | Describe it to Claude Code or Codex | Canvas with triggers and responses |
| Real iOS controls | Yes: keyboard, sheets, scrolling, Liquid Glass | Recreated by hand |
| Price | Free to build, Plus $8 a month to share | Paid plans, Pro from about $67 a month |
| Best for | Native iPhone app prototypes | Detailed interaction design across platforms |
When to pick ProtoPie
When you need precise, hand-tuned interactions, hardware and sensor prototyping, or Android and other platforms today.
When to pick Prototo
When you want a real iPhone app without building every control by hand, and want to share it as a link.
Keep reading
Download Prototo for Mac. Free to build, and viewers get the free Prototo app on iPhone.