Split audio with Android

Hello,

Has anybody used split audio with Android ?
I use a simple split audio cable instead of Griffin one but it should not pose a problem. Djay 2 app for Android does not have options to control volume for Master and Headphones as in case of Vjay app…
Basically my problem is that what I hear in headphones is what is send to master (not crossfader issue).

Br,
Micha,