Does UIWebView use the same JavaScript engine as Mobile Safari? Also, does UIWebView support all HTML5 features like Mobile Safari does? I am specifically concerned about Web SQL and Web Workers If I have an app which is written purely in HTML and JS, should I wrap it up in a UIWebView or should I have it open in Mobile Safari Are pure HTML and JS apps accepted on the Apple store?

UIWebView and Safari comparison

Does UIWebView use the same JavaScript engine as Mobile Safari?
Also, does UIWebView support all HTML5 features like Mobile Safari does? I am specifically concerned about Web SQL and Web Workers
If I have an app which is written purely in HTML and JS, should I wrap it up in a UIWebView or should I have it open in Mobile Safari
Are pure HTML and JS apps accepted on the Apple store?