Built in an afternoon with plain canvas and about 150 lines of code - no engine, no library.
The point: if we can build this for fun, the interactive bits your real site needs are the easy part.
On iPhone: tap Share ⎋, then "Add to Home Screen".
This isn't a screenshot of an app. Add it to your home screen and it opens fullscreen and works offline, exactly like a native app. That is a PWA - and it's what we build.
This is a PWA - a real app you installed straight from a web link.
No app store, no thousands spent on a native build. A simple solution that behaves like the real thing - by Faberno.