How to Delete apps on an iPhone or iPod Touch
In order to delete an application, or App, in your Apple iPhone or iPod Touch device, go to the home screen, where all of your apps are displayed together. Each app icon visible here is a button. Press and hold the button for any app until all the apps start wiggling. Once the apps are wiggling, an X will appear next to any app that can be deleted (some apps, like proprietary Apple software, cannot be deleted). Press this X, and you will be prompted with the option to either delete the app or cancel the deletion. Select delete, and you will successfully delete the app.