I would like to know if there is a way in Android 6.0.1 to turn off certain apps when I am using mobile data. For example, I would like to turn off Facebook Messenger while keeping Whatsapp available. Is that possible? I have a friend that can do this but I cannot do it in my phone. Best regards
Install a firewall and restrict internet access to your desired app. You can grant access to mobile data or WiFi or block completely from accessing data. There is an inbuilt app in Lenovo handsets called security, which does this job pretty well.