Free42 is an app that simulates the HP-42S programmable scientific calculator, formerly built by Hewlett-Packard.
Free42 was written by Thomas Okken, and is distributed free of charge. It is free and open-source software,
published under the terms of the GNU General Public License, version 2.
Free42 does not collect any personally identifiable information. In fact, it collects no information whatsoever,
and never, under any circumstances, communicates with any other apps or services.
Go to Free42 home page