Higgs

The interactive iOS playground

Experience Apple's Human Interface Guidelines in the real world

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Components

All iOS components

Buttons, lists, navigation, sheets, controls. Tap through the real system UI instead of static docs.

Capabilities

Technical demos

Live Activity, push notifications, and more. See how the hard parts work on your own device.

Guides

Built-in explainers

Context next to every control. Why it exists. When to use it.

Platforms

One playground

iPhone iPad Mac

Wall of love

Take it from people who build for iOS

What early testers said, in their own words.

I wish Higgs had existed when I started my career. Reading the HIG never stuck. Feeling sheets, lists, and navigation in my hands finally made it click.

MV Marcus Veenstra Product designer

Just playing with iOS in Higgs showed me patterns I never used before. That curiosity turned into new project opportunities I would have missed in static docs.

SN Sofia Navarro iOS engineer

The Live Activity and push demos are insanely useful. I stopped guessing and started shipping the real system behavior.

JB Jonas Berger Mobile lead

Having every component with a short explainer next to it is a game changer. Design and engineering finally speak the same language.

AO Amira Okonkwo Design systems

Touch the theory.

In the world of Apple, the H.I.G. is the invisible force behind every pixel. The difference between a flat port and a native experience.

You don't learn that from thousands of pages of static documentation. Great design is something you have to feel: Vibrancy, haptics, Live Activities, rich notifications. Live on device.

That is why we built Higgs. Not a dry reference manual, but a living playground for designers and developers.

Play with the elements. Build better apps.