There are a number of tools for making Apps for Apple products.
Why does it have to be droop and drag? Is it not more important to have the app do something worthwhile?
As a general rule, content and function are ahead of style. IMO, you should first develop a tool that is very good and then have an coder add some polish to it.
Do you already have such an app? What kind of programming can you do?
Here is just one of hundreds of sites that offer tools.
http://www.appmakr.com/Here is a list of some of the better tools out there.
http://webjackalope.com/archive/web-development-tools-mac23 Essential Tools For Web Development on a Mac
How many of these has the OP tried already?