NoRoot Firewall is described as 'Firewall WITHOUT ROOT. Host name/domain name filtering, simple interface, fine-grained access control and no suspicious permissions on the firewall app itself' and is a Firewall in the security & privacy category. There are more than 10 alternatives to NoRoot Firewall for a variety of platforms, including Windows, Android, Android Tablet, F-Droid and VMware vSphere Hypervisor apps. The best NoRoot Firewall alternative is NetGuard, which is both free and Open Source. Other great apps like NoRoot Firewall are AFWall+, EasyFirewall, Karma Firewall and ZoneAlarm Firewall.