WiFi Thief Detector -Who Use My Wifi is a free Android app developed by DevAb. As the name suggests, it is a utility tool that scans and detects unauthorized devices connected to your WiFi network. This app is useful for those who want to keep their network secure and prevent unauthorized access.

The app is easy to use and has a user-friendly interface. It scans and displays a list of devices connected to your network, including their IP and MAC addresses. You can easily identify unauthorized devices and block them from accessing your network.

Overall, WiFi Thief Detector -Who Use My Wifi is a useful app for those who want to keep their WiFi network secure. It's free, easy to use, and does its job well. However, it's important to note that this app only detects devices connected to your network and does not provide any additional security features.