Protectstar DNS Changer Android is a free app that helps you change your DNS servers to optimize your device's internet speed and security. It offers preconfigured DNS servers or allows you to use any custom IPv4/IPv6 DNS server. The app provides DNS servers for security, ad-blocking, parental control, malware protection, and many more.

With Protectstar DNS Changer Android, you can access websites blocked by your ISP or unblock restricted web content. You can also protect yourself from phishing, malware, ransomware, and malicious domains. The app removes ads to enjoy a faster mobile browsing experience, while parental control servers ensure safe browsing for your family by filtering inappropriate content, such as adult websites, gambling, and more.

The app is easy to use and works without root for both WiFi and mobile network data connections. It also has an integrated DNS speed test feature for PRO users to find and connect to the fastest DNS server based on location and network.

Overall, Protectstar DNS Changer Android is a great tool for improving your internet speed and security. It has been preferred by more than 5,000,000 users in 175 countries.