Apple HIG: System Experiences

Check for .claude/apple-design-context.md before asking questions. Use existing context and only ask for information not already covered.

Key Principles

Glanceable, immediate value. System experiences bring your app's most important content to surfaces the user sees without launching your app. Design for seconds of attention.
Respect platform context. A Lock Screen widget has different constraints than a Home Screen widget. A complication is far smaller than a top shelf item.
Widgets: show relevant information, not everything. Display the most useful subset, updated appropriately.
Support multiple widget sizes with distinct layouts. Each size should be a thoughtful design, not a scaled version of another.
Deep-link on tap. Take users to the relevant content, not the app's root screen.
Live Activities: track events with a clear start and end. Deliveries, scores, timers, rides. Design for both Dynamic Island and Lock Screen.
Stay updated and timely. Stale data undermines trust. End promptly when the event concludes.