What’s the difference between Bidbrain PRO & Bidbrain PRO+?

In short, the difference is the bidding strategy.

With PRO+ you use Bidbrains advanced AI bidding to set bids on Google shopping, Bidbrain automatically creates the campaigns and updates your bids to meet your ROAS target. 

With PRO you use your existing Google Ads campaigns and can only use Google's built-in manual or automatic bidding strategies.