I think this is a great idea. Wouldn't have guessed this would be possible so I looked into how it'd actually be implemented.
I guess this is done on the device as a VPN via Apple's NetworkExtension config. But instead of a normal VPN where traffic goes through a server, the app just locally applies rules based on the app the packet came from and then routes them normally to their destination.
I guess this is done on the device as a VPN via Apple's NetworkExtension config. But instead of a normal VPN where traffic goes through a server, the app just locally applies rules based on the app the packet came from and then routes them normally to their destination.