Android: without rooting your phone, I keep writing this on HN :) it is called "NoRoot Firewall". Free app, it creates a VPN within your phone and asks you for

Android: without rooting your phone, I keep writing this on HN :) it is called "NoRoot Firewall". Free app, it creates a VPN within your phone and asks you for every ip:port to allow/block and one can also use rules such as Block 111.111.., port: 123. Worth checking out. I have e.g. a chess app, I keep it block all IPs/Ports. I never have to worry for tracking, spying, ads, etc.