Rastreador Celular MTK is an Android-based application that allows you to track the location of your family or company's devices. However, to use this app, you must first be a user of the Mobiltracker platform. You can register by accessing their website or by downloading the Monitor Mobiltracker app from the Google Play Store. Once installed, the app collects the location of the device and sends it to the Mobiltracker server for tracking and monitoring.

It is important to note that Rastreador Celular MTK is not a spy app and should not be installed without the owner's consent. The tracking is not done by the phone number or IMEI of the device. Some Android models may "kill" background apps, but this issue can be resolved by following the instructions provided in the Mobiltracker forum.