Mobile Per APP VPN and split tunneling traffic

We have per app vpn setup for our mobile devices for their browser (Safari for iOS , Chrome for Android). VPN tunnel is successfully established. Client is able to access to internal applications. But when client tries to access sites out of our enterprise domain (like yahoo.com, google.com) that traffic also comes through the VPN routed through enterprise network to internet.

 

We tried putting split tunneling in Network Access Profile but didin't help. Can't we achieve split tunneling if we use per app vpn.

 

Referring to following discussion I get no split tunneling is not possible with per app VPN setting.

 

https://forums.developer.apple.com/thread/82704 https://devcentral.f5.com/questions/apm-per-app-vpn-network-access-split-tunnel-vs-app-tunnel

 

Is there any configuration option for per app in F5 APM that allows access to internal corporate site through VPN but access to sites not hosted by our enterprise device access it directly.