Mobile platform vendors, like Apple, are totally cool with apps that use your phone to its fullest. Access your location, play background audio, get your GPS coordinates, read all your contacts, play videos or audio without app interaction, read your email, intercept your typing, play more than one thing at a time, use your microphone and camera, access your pictures, and more.
Apple’s totally cool with that.
But only if you pay Apple $99/year for the privilege.
If you want to do any of those things in a regular old web app, well, goshdarnit, Apple won’t just deny you these things, it prevents you from even asking permission.