Wifi Analyzer is a free utility and tool application available on Android that provides comprehensive information about wireless signals around you. The app supports 2.4 GHz and 5 GHz wifi networks, allowing you to find the optimal placement for wifi receivers. With Wifi Analyzer, you can get information individually on wifi channels and see the signal strength in the history graph. The app also recommends the best channel for new access points and provides information about the channel width80MHz - only Android 6+).

One of the most interesting features of Wifi Analyzer is the Wifi Heat Map, which lets you create a heat map of wifi signal quality around you. The app also offers an overview of available Wi-Fi networks, signal history, channel width detection, and a wifi scanner. Wifi Network Analyzer Pro without ads is also available at the Google Play Store.

Note that Android 6+ (Marshmallow) requires LOCATION permission and location enabled, as explained on the official website android.com.