AndGuard Pro is essentially the same as regular AndGuard, but with additional support for IP address blocking via Iptables.
To Check if your Android device has Iptables, do the following:
At the Terminal Emulator, type "su" and then "iptables -L"
If Iptables is installed, this command will display the current rules.... If it is not, you will get an error and AndGuard Pro's Iptables functionality will not work.