I use AFWall+ which works directly on the iptables and not as a VPN. It can coexist with a VPN. It does require root though. https://play.google.com/store/apps

I use AFWall+ which works directly on the iptables and not as a VPN. It can coexist with a VPN. It does require root though. https://play.google.com/store/apps/details?id=dev.ukanth.ufirewall https://play.google.com/store/apps/details?id=dev.ukanth.ufi...