A free program for android, NETGEAR Genie.
NETGEAR WiFi Analytics is a free mobile app for Android devices that lets you see detailed information about your WiFi connection that can be helpful for you. The app is simple to use and the interface is easy to navigate.
With this app, you can check for advanced analytics that can be beneficial when it comes to optimizing your existing and newly extended WiFi network. You can also check for your network status, and WiFi signal strength, identify crowded WiFi channels and find clear channels with less interference.
You can check for the network status of the internet connections around you, just simply click "Scan Now" and you'll be able to see it.
