For totally free, WiFi Doctor is a powerful, simple and free tool designed to monitor WiFi status and protect your Internet activates. It can scan all devices connected to your personal WiFi hotspot.
★ WiFi Security Check
Check if the connected WIFI network is safe. Protect your personal privacy and property.
★ WiFi Monitor
Scan all devices connected to your personal WiFi hotspot, including Android Phones, iPhones/iPads, PCs. Show details of all connected devices, so you can find out who are consuming your WiFi and slowing down its speed.
★ Super Boost
Some apps automatically re-launch themselves in the background without authorization. Super Boost feature can stop them from re-launching by using the accessibility feature, so these apps will be completely closed and will never automatically launch themselves again.
The features listed above are available for free.