: You can generate logs in NMEA, KML, and GPX formats for use in various mapping tools.

: It uses device vibration and LED flashing to immediately notify the user if the GPS fix is lost.

: The app can connect to external GPS devices via Bluetooth and even act as a "GPS mouse" for other applications. Ultra GPS Logger - Apps on Google Play

: It supports "intelligent" KML and GPX output, which only logs data when real movement is detected to save storage and battery.

: The app can keep GPS active during standby mode, allowing for long-duration tracking without manual device interaction.