Net Monitor is a powerful utility app designed for Android devices, specifically targeting cellular network engineers. It offers comprehensive online monitoring of GSM, WCDMA, and LTE network signals and services. Users can benefit from features such as customizable widgets, signal strength indicators in the status bar, and the ability to maintain a detailed offline database of measurements. The app also supports data collection in the background, allowing users to analyze network performance without constant interaction. Additionally, it enables the export of session data to CSV and KML formats, enhancing data portability and usability.

The app's pro version introduces advanced features like CDMA support, dual SIM widgets, and enhanced monitoring capabilities. Users can display sector azimuths on maps, utilize dark and light themes, and share session data in JSON format. However, the accuracy of the collected data can vary based on the device's implementation of the Google Android API. Overall, Net Monitor is a robust tool for anyone needing detailed insights into cellular network performance.