1) For this to gain massive traction, a lot of people (millions) are going to have to install this
What are your plans for making that happen? In other words how will you scale this? What channels will you use? What customer acquisition costs do you anticipate?
2) Do people actually click on ads? The intent of the products is to drag/drop, be done & move on - not hang around to see ads etc. So how profitable is this channel? What other sources of revenue are you considering?
3) Who would you consider your nearest/biggest competitor? What stops them from creating features that your offering has that they may be missing?