GnssLogger is a free Android application designed for detailed analysis and logging of various location and sensor data, including GPS and network location. It offers a range of functionalities through its intuitive interface, allowing users to control data logging for raw GNSS measurements, navigation messages, and sensor data. The app includes multiple tabs such as Home, Log, Map, and Status, enabling users to manage logs, visualize data on Google Maps, and access information about visible GNSS satellites.

In addition to its core features, GnssLogger provides advanced capabilities such as plotting signal strength and pseudorange residuals, utilizing Assisted-GNSS functionalities, and performing Weighted Least Square (WLS) analysis. It also supports Wear OS 3.0 and higher, allowing users to view real-time GNSS chipset status and log data directly to CSV and RINEX files. This makes GnssLogger a powerful tool for users needing in-depth location data analysis on both phones and smartwatches.