There are several applications available that help track mobile phones, such as Prey and Lookout, notes DigitalTrends.com. These programs are meant to be used as a way to deter theft and should not be used for invading others people privacy.
Most of these programs run in the background at all times. This way, if someone steals the phone it will function as the phone is turned on. The tracking can also be done online through other computers.
Prey is one of the top programs in tracking cellular devices. It is free for the first three devices and any more requires a paid service plan. It only requires a person to sign up, where he is able to sync his phone to a usable computer. This program runs at all times and is available to be used on both Android and iOS phones.
Lookout is a complete protection application that is available for both iOS and Android. It features services such as recording a phone's last location any time the battery dies, the ability to back-up any data before performing a remote erase and powering up the camera to catch a picture of the thief. This program begins through a trial period, but once it ends requires a minimal subscription charge every month.