Do the colleges look at your QB app as well? Or just your Common App?

Say I get past the first wave of QB eliminations. Will colleges look at the both my QB application and Common App, or just the Common App?

If you become a finalist, each college specifies what is required to complete its application, and most, I believe, include the Common App and some require the QB app too (and yes, you can use the same essays). So check each school you are interested in for finalist requirements.