app prototyping

Create production-ready app prototypes

Build fully interactive prototypes in minutes and get more valuable feedback from users and stakeholders by presenting production-ready app designs that behave same as an end-product.

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Judo App Preview on Desktop + Features

Native prototypes that look like the real thing—because they are

Prototype a new app idea in a Figma-like canvas with the same SwiftUI components devs build with. Ready to go live? Drop into Xcode, add custom code and ship it.

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Build Visually

Drag-and-drop shapes, text and images—then add navigation and interactions, all without writing a single line of code.

The Power of SwiftUI

Judo uses native SwiftUI components—so your prototypes are indistinguishable from apps built with code by devs.

From Prototype to App Store

Stop handing-off and throwing away prototypes. Xcode integration lets devs add custom code, instead of rebuilding from scratch.

Join top designers & developers
using Judo to create app prototypes


❝ With our app developer we have to pick between templated cards that can get boring - but with Judo we have the ability to design from a blank slate. ❞

Matthew Ship

VP of Digital Innovation


❝Judo’s approach to building app UIs is the best I’ve seen. Their visual app editor exposes the underlying platform APIs for full control and customisation.  ❞

Ryan Brooks

Full Stack Developer


❝ With Judo any team can easily start creating app UIs. They have a really nice, fully native Mac app that let’s you build UIs completely visually with SwiftUI. ❞

John Sundell

Expert Swift Developer


❝ Being able to quickly ship production-ready UI instead of just design files that still need to be build by our devs is a significant workflow enhancement. ❞

Austin Klubenspies

UX Manager