NetSpeed: Mobile/WiFi (Trial) is a free network speed metering application developed by Jan Pitter for Android devices. The app provides a simple and easy-to-use interface that displays the current downlink and uplink network speed, downlink and uplink data volume, and mobile network type (GPRS-LTE) or WiFi SSID name on the notification bar.

The app comes with a widget that allows users to add or remove notifications with just a tap. Users can also start or stop metering by tapping on the notification. Additionally, the app allows users to stop monitoring when the screen is off. By default, the mobile network is metered, and WiFi is metered when connected.

Overall, NetSpeed: Mobile/WiFi (Trial) is a useful tool for monitoring network speed and data usage on Android devices. With its easy-to-use interface and convenient features, users can keep track of their network performance and avoid exceeding their data limits.