Net Toolkit is a free Android app developed by guardmaster under the Utilities & Tools category. It is a versatile app that offers a range of features to optimize your device's performance and security. The app has a user-friendly interface that is easy to navigate.

The app offers a built-in VPN that secures your device's connection while connected to public Wi-Fi hotspots or cellular data networks. Net Toolkit also provides a speed test feature that lets you check your internet speed for free and optimize it for better performance. Additionally, the app's security feature scans your network environment to protect your network security. Net Toolkit does not keep logs of your activity, ensuring your privacy and security.