Can I just turn off just cellular data for specific apps in Android 6.0?

[AC Question]

I'm looking to get a Galaxy S7 for my daughter and I want to be able to control which apps have access to cellular and Wi-Fi? This is a feature on the iPhone (the only feature I like about Apple). Example would be to only be able to use YouTube or Vevo over Wi-Fi, not cellular. From what I've read about the new app permissions on Marshmallow, you should be able to do this (restrict cellular data only on an app), however I can not find in any article where it simply says you can restrict cellular over Wi-Fi. I've read that you can turn off for example the microphone, camera, etc., but not cellular data. Appreciate the feedback.

 

[anon(632115)]

I have an S6 Edge running Marshmallow and checked out the app permissions for YouTube. Unfortunately blocking mobile data is not an option.

 

[filanto]

I'd love this option also. I had opera max turn off on me when I was downloading Ultraviolet movies and the WiFi went down. Burned through 1/3 of a months data