Scanning a building's Wi-Fi signals is easy with a mobile device by downloading the app. In addition, users can discover networks, detect weak or dead zones with powerful features. The interface is generally easy to use.
Displaying Wi-Fi network signals can be tricky. Using the desktop is too cumbersome. The laptop can work, but wandering around with a bulky laptop can be tiring. It is much easier to use a tablet or phone. Start signal detection at one location, move to the next, and repeat the process until we're done.
There are plenty of them in the Android device market, ranging from highly technical tools to simple programs that are little better than the "Find a network" option in the settings menu.
Applications are one of the best tools with a set of extensive data collection features, the ability to create RF heat maps (for registered users) and compare different networks scanned by a computer.