For Clock App Lab #001, the home screen icon is not just a small image. It is the first part of the app the user sees before launching it. A clock PWA needs an icon that is simple, readable, and recognizable at small sizes. In this note, I focus on designing a clean icon for Android and iPhone, using the retro clock shape, a simple Z mark, and the short app name “Clock Lab.” In this ninth note for Clock App Lab #001, I want to focus on the home screen icon. After working on t

For Clock App Lab #001, the final step in this first round is testing the clock on real phones. A PWA can look good in a desktop browser, but the real question is whether it feels useful on Android and iPhone. This note focuses on portrait mode, landscape mode, home screen launch behavior, saved light/dark mode, and whether the clock feels like a small desk object rather than a normal web page.

For Clock App Lab #001, the next step is testing how the retro desk clock behaves when it is added to a phone’s home screen. A clock PWA should not feel like a normal web page. It should launch quickly, open in a clean standalone view, remember the selected mode, and feel like a small tool that can stay on the desk. This note focuses on the home screen installation flow for Android and iPhone.