Yes - this only applies to iOS devices right now.
I'm not sure if there are plans to apply this to Android overall, or if it is (or will be) universally supported in Android for Work (as it is for iOS).
That being said - there are some Android apps that can be managed this way through app settings. For those apps that support it, you could make a configuration profile (SM>Settings>App Settings) to configure those apps to only work on wifi!
There is also the option in Device Owner mode to disable data roaming (Settings>More Android>Device Owner).