Free42 vs TheLetterEncrypter

A side-by-side look at Free42 and TheLetterEncrypter. For an in-depth review of either product, follow the links below.

Free42

Office & Productivity

Free42 is an open-source programmable calculator app designed to emulate the HP-42S calculator. It provides RPN mode, programming capability, expandability via packages, and accurate emulation of the original HP-42S.

emulatorrpnprogrammablehp42sopensource

Full review → Alternatives

TheLetterEncrypter

Security & Privacy

TheLetterEncrypter is a free, open-source encryption software that allows users to encrypt text messages using a simple letter substitution cipher. It provides a basic level of security for short messages.

encryptionsecurityprivacyopen-source

Full review → Alternatives