Hello does anybody know whether Cubase ic pro works with cubasis e.g. iPhone to iPad ? 
Hi desmusic,
Cubase iC Pro is our touchscreen remote control iOS app for Cubase.
Please learn more right here:
https://www.steinberg.net/en/products/mobile_apps/cubase_ic_pro.html
https://itunes.apple.com/us/app/cubase-ic-pro/id573140262?mt=8
Best,
Lars