eero - Blanket your home in fast, reliable WiFi
NetSpot - NetSpot is a free app for wireless site surveys, Wi-Fi analysis, and troubleshooting
EdgeWise Connect - Stay connected, even at the edge of Wi-Fi
Vistumbler - Vistumbler is a wireless network scanner for Windows Vista and Windows 7. Features:
Orbi WiFi System - Better WiFi. Everywhere.
Kismet - Kismet is an 802.11 layer2 wireless network detector, sniffer, and intrusion detection system.