The Find My app is a tracking app provided by Apple that helps you find your lost or stolen Apple devices. The app uses GPS on your device to pinpoint its location and show it on a map. You can also use the app to play a sound on your device, display a message, or remotely lock or erase it. Location-based notifications are also available, alerting you when your device arrives at a certain location. If you get 'No Location Found' on your Apple device or iCloud website, you may be unable to use all of the app's features.