The integration of GPS with other mobile technologies enhances its utility and accuracy. Assisted GPS (A-GPS) uses cellular network data to speed up the initial GPS fix (Time To First Fix - TTFF), especially indoors or in urban environments where satellite signals might be weak. Wi-Fi positioning systems (WPS) use the location of known Wi-Fi hotspots to provide approximate indoor posi... https://mobileattendance.com.sg/mobile-with-gps/