Hi Paul,
Your creation seems awesome! I really like that :)
The minimum system requirements of our android app the Android 4.3
This not will change in the furutre because the BLE (Bluetooth Low Energy)
As I see, you can update your phone to Android 4.3
http://www.gsmarena.com/samsung_i9300_galaxy_s_iii-4238.php
After the update you will able to use our application.
Hello! I hope to acquire an Sbrick for my creation shown below soon. I currently have a Samsung S3 Galaxy, which unfortunately is incompatible with the current android app, so I'll probably have to wait a bit.
The vehicle will have simple funcitons, L-motor and servo for steering with a rechargeable battery pack.