How To Make iPhone App Into A Web App

If I make a iPhone app, like a grade manager. What technologies are necessary to make it into a web app.

This includes reading开发者_如何学JAVA the data from iPhone app in the web app portal (not necessarily editing from web app as of now).

I think I need to transition from using plists to using MYSQL?

Probably you need to this:

http://www.phonegap.com/

it's an Open Source Mobile Framework That Supports iOS and other platforms.

Hope it will give you a guide.

The best approach would probably be to write a web app that can communicate with the iPhone app, not "converting" the iPhone app to run on the web.