Du Smart is a free Android app developed by CLEAR QUALITY. It is a utility tool that helps to make your internet browsing faster and safer. The app provides a VPN service that allows you to access blocked websites, video streaming, and VOIP calls. It also lets you use a pin system login for added security.

One of the most significant features of Du Smart is its VPN service. With this service, you can access blocked websites and enjoy video streaming without any restrictions. Moreover, the VPN service provides a secure connection for VOIP calls, ensuring that your conversations are not intercepted by third parties. The pin system login is another feature that adds an extra layer of security to the app.

However, Du Smart requires permission to manage phone calls, which might be a concern for some users. This permission gives the app access to the identifier of your device and mobile network.

Overall, Du Smart is an excellent app for those who want to enhance their internet browsing experience with added security and faster speeds.