On Target and TAP (The Archery Program) are both very good tools if you are serious about archery. The biggest things they do are help you in selecting the correct arrow for your set up. I can't believe more proshops do not use this type of software. It is so much more accurate than using an arrow chart and guessing or using an online calculator.

They will also estimate speed, print out sight tapes for target sights and varioius other things.

I have not used either in a while, one was easier to use, but not as technical. I can't remember which is which to be honest. I had trial versions of both but they both expired and I can't really afford to purchase either at this moment, and I forgot which one I wanted.

Paul