Create interactive iOS/mobile app UX flow prototypes as HTML documents with realistic phone mockups.
Use when: (1) Visualizing user journeys and navigation flows, (2) Creating mobile app wireframes,
(3) Documenting screen-to-screen navigation patterns, (4) Presenting iOS UI designs with annotations,
(5) Prototyping app architecture before implementation. Generates self-contained HTML files with
iOS-native styling, phone frames, flow arrows, and callout annotations.
