If I should charge, how much would be good price? I think it will take my team a cumulative of 15 hours. The potential client has not paid anything yet. I know some people would do this job for free in hopes of getting the business but I don't want to work for free.
We're working on a mobile project for a client right now and, in order to scope the project properly, we created very basic wireframes with no functionality. I think it's imperative that this be accomplished to set and meet expectations on the delivery for the agreed upon price.