Complete Ripoff

Try the free 12C Lite (excellent implementation) or the amazing $7.99 i41CXp (super powerful - financial solver In PPC rom add on) instead. This program fails basic calcs miserably (i.e. Cant solve for Interest given PV, PMT, & FV). No excuse. Developer gouged on price for much needed functionality then failed to deliver!

DASreview about Calculator12 RPN