Can I use common app for few colleges and UCA for other colleges?

Question

Can I use common app for few colleges and UCA for other colleges? For example: Use Common App for Harvard and Duke but use UCA for Princeton?

Is UCA better sice you don't have to write essays? For Harvard: Common Application (with the Harvard questions and Harvard Writing Supplement) OR the Universal College Application (with the Harvard Supplement). So you don't have to do the essays if you choose UCA?

Answer 1

This depends entirely on where you want to apply to.  Different universities will require different applications.  However you should always do individual essays for each program you are applying to.