Itunes says I have more apps than I actually have?

ITunes says that I have 2.2 GB of apps on my iphone, when in reality I only have 12 apps, about 200 MB. I deleted more apps, and it STILL says I have 2.2 GB… How can I get it to go down?

What? And Why?

If you are looking at how much free space on the iPhone, you have more than Apps taking up space.

Contacts, messages, music, video and each App may store data
AND
The device has software on it that uses some of the storage space. So a 16GB iPhone really only has about 13.8GB of usable space on it.