GPS Tracker Tool is a comprehensive application designed to work as a remote control for compatible hardware GPS trackers. It simplifies the tracking process by drafting SMS commands, eliminating the need to carry around tracker manuals. The app includes a built-in compass for off-road navigation to tracker locations, cell triangulation as a fallback, reverse geocoding, and the ability to manage multiple trackers. Users can easily set up geo-fences, customize unit systems, and access quick commands for efficient tracking.

Incoming SMS messages can be copied into the app for visualization on the map, providing a seamless tracking experience. The app supports various tracker models, enabling users to monitor and track their devices effectively. However, limitations exist regarding SMS functionality on certain devices, and users may encounter challenges with iOS message handling post-iOS 10.