Who is on My WiFi is a free, simple, and powerful app for Android. It allows you to easily and quickly find out who is using your WiFi network. 

It can also help you protect your WiFi network from malicious users. If you are concerned about your network security, this app is a must-have tool for you.

You will be able to find out the device history and identify the user with the help of the device's fingerprint. You can also check the status of the device and see how much data it has left.

You can also use the app to change the password of your router.