You cannot make web applications that work as mobile apps because they want to force you to go through their app store. Completely go against Steve Jobs vision.
They will delete your web app's local offline storage after 7 days. Also no notification allowed on IOS for your webapps (other platform/phones no problem).
Also, you cannot stream games from Iphone/Ios using cloud servers not from their own.
This is a really lanciau pukimak company. That's why I hate developing for their platform. They deliberately make it difficult so you will end up only supporting them and not their competitors.
They also do not allow OTHER browsers on their phones. Firefox and Chrome for IOS are reskinned Safari browser that uses the webkit engine which has the same limitations as safari and does not comply with industry standards so you would have problems implementing web standardized web applications especially Progressive Web Apps.
Apple is a big huge hindrance to industry standards. They're essentially the old Microsoft.
Apple, a balless and coward company