When I talk with other iPhone users, we often discuss apps — the ones we use the most, new favorites, etc. People often ask me how many apps I have installed, and are often surprised that I can give them a precise answer very quickly. You can easily get statistics on your iPhone within the Settings app. Just go to General --> About and you will see lots of useful information on your iPhone, including the number of songs, videos, photos and apps installed and the version of the iOS that you have installed.