Where can I find examples of ready-made ios applications?

Question

iOS

In order to understand the structure of the finished solution.

Answer 1

Here are a selection of real apps posted in the store.
A very good selection of applications posted on the market:
maniacdev.com/2010/06/35-open-source-iphone-app-st...
Here is a selection of applications with source code, though a little outdated:
ntt.cc/2010/09/ 05/50-open-source-iphone-apps-for-i...
Also an outdated collection, but fresh sources can be found:
www.edumobile.org/iphone/iphone-programming-tutori...