GPSUp is a free Android application designed by rock. It is a simple yet effective GPS application that allows users to fix GPS issues, test GPS, auto-update A-GPS data, and quickly start GPS. Additionally, users can view their current coordinates, speed, and precision positioning, as well as information on the level of each detected satellite signal.

This application can be used in conjunction with navigation software or games that require geolocation. With an internet connection, GPSUp detects the GPS signal much faster and increases the accuracy of the signal.

Overall, GPSUp is a useful application for those who rely on GPS for navigation or geolocation purposes. It is easy to use and offers essential features that can help improve GPS accuracy and performance.