SelfishNet - Block anyone or any device from using your internet
SoftPerfect WiFi Guard - Security of your Wi-Fi network for Windows, macOS and Linux
WirelessNetView - Small utility that runs in the background, and monitor the activity of wireless networks around you.
Wifi Protector - Wifi Protector is an all-in-one application that provides a secure wireless connection with the help of a VPN, which means you are going to have a direct and encrypted connection between the internet and computer.
WiFiKiLL PRO - WiFiKiLL PRO app lets you completely shut down your internet connection and disconnect all the connected devices with a single tap.
WiFi Monitor - Detailed description of Wi-Fi Monitor and Wi-Fi Monitor Pro