Depending on the model and manufacturer of the phone, there are many free applications, such as Cell Tracker and Lost Android available on Google Play, and Find My iPhone available for Apple devices. The tracking and locating of cellphones utilize the downloaded applications with the devices GPS. Some require a password, code or online access to provide location assistance.
There are more than 100 apps to assist in locating a lost cell phone. Some provide GPS tracking while others vibrate to a clap of the hands for lost-at-home or in-the-car situations. Each app varies with the features offered, and potential users can view the application details and ratings on Google Play or iTunes App Store.