Web App vs Native iOS App

Ref:
http://books.google.com.hk/books?id=3NQhBTNKJB8C&pg=PA64&lpg=PA64&dq=jqtouch+addgloss&source=bl&ots=j9Xes0ol4x&sig=Otzx299SK1IsrBSCLcknN9I_PFQ&hl=zh-TW&ei=kFKuTrSxL-qNiAfEuKyvCw&sa=X&oi=book_result&ct=result&resnum=1&ved=0CCYQ6AEwAA#v=onepage&q=jqtouch%20addgloss&f=true