Info requirements for the Intellilink 3.0

Hello, I still have some questions about the above-mentioned IL system, which I have not been able to research exactly so far. My daughter is very much in love with an Adam. For budget reasons it is supposed to become a used one, at the moment one is installed from early 2014 to the choice of the above-mentioned radio. My current questions would be: 1. Which apps are currently available for the IL 3? (Used is an Android) 2. When was the successor R4.0 installed? (is 12/2015 k) orrekt?) 3. You can only use BringGo for navigation in the IL 3? (apparently Opel Mirrorlink didn’t give in?) 4. Except BT the phone doesn’t need cables for the connection? I thank you for informative & constructive answers.