A free program for Android, by KeepSolid Inc.

Protect your Android device from cyber threats with KeepSolid DNS Firewall. DNS Firewall offers a secure, effective, and reliable solution to its users. This advanced program blocks access to known-malicious websites, preventing them from infecting your device and compromising sensitive information. Developed by cyber security experts, DNS Firewall offers powerful technologies and the highest security standards. With this program, you can filter incoming traffic, prevent phishing and other attacks, and ensure the privacy and security of your sensitive data. It also blocks unwanted content, such as gambling sites. Keep your online experience safe and protected with KeepSolid DNS Firewall – the perfect solution to protect your Android device from cyber threats.