Databridge does the functionality of pages not the design... So you can create your own responsive pages and forms.
The basic forms it creates can be easily updated for responsive designs.
The main difference between Databridge v1 and v2 is the ability to create pages using MySQLi and php7 support. The page and form designs haven't changed. If you use Databridge v1 you won't be able to use MySQLi and the pages won't work on php7+.