this is what I dont understand. so many apps are almost website-like in functionality, and you can save a shortcut to the desktop / main screen and it will lau

this is what I dont understand. so many apps are almost website-like in functionality, and you can save a shortcut to the desktop / main screen and it will launch / look like an app. complete with notifications (if enabled). What's the barrier? (another poster mentioned not knnowing anything outside of the appstore, but then "Share -> Add to Home screen" is a pretty damn simple flow.