XCALC is described as «is my little RPN calculator completely free to use, and still downloadable. XCALC is now a DEAD project. No work has been done on this project since 2012, and nothing more will be done either» and is a Calculator in the education & reference category. There are more than 25 alternatives to XCALC for a variety of platforms, including Windows, Android, Mac, iPhone and Online / Web-based. The best alternative is Windows Calculator, which is both free and Open Source. Other great apps like XCALC are Numi, Google Calculator, NumWorks Graphing Calculator and GeoGebra Scientific Calculator.
