For schools that do not use CommonApp

<p>Three of the schools I am applying to is year do not use the CommonApp. However, their essay prompts are almost identical to those of the CommonApp. Does this mean I have to use my CommonApp essay on these prompts even though these schools do not use the CommonApp? Is it completely up to me whether I can use the same essay or not?</p>

<p>Please help.</p>