The difference between web and app is trust. A website has write access to my screen, my speakers and my internet connection. Plus limited read access. To keyboard, mouse, device orientation etc. Other rights can be granted (location, cookies etc). It can do all this only as long as it's "open". An app usually has read/write access to large parts of my device. The whole sd-card, raw internet access, the camera, the m…
On Android.