Developer: Edward Falk

RpnCalc 12c Financial Calculator is the highest-rated and most popular financial calculator on the Android Market.It has an interface that users of the HP 12C financial calculator line will be...

RpnCalc is the best RPN calculator on the Android Market.It has an interface that users of the HP calculator line will be completely at home with, including these features:Scientific modeBasic...

A very simple diagnostic application. Intended for developers to help debug screen resource issues. This application simply shows screen dpi and gives hints as to which resource files are in...

Aircraft navigation software. Still in development. Please contact falk@efalk.org with comments, suggestions, and bug reports.This application is NOT approved for navigation. Always have proper...