Do I need to keep the Find My Phone app...

[adammusic]

Do i need to keep the Find My Phone app on my phone in order for it to work? Or can I delete it?

 

[JediMeister]

To use the Find My iPhone service and enable it, you only need to have an iCloud account and iOS 5. The app exists to allow you to track all iOS/Mac products under a AppleID without having to login through the web app at iCloud.com.