Hermetic Systems

Software for word and phrase counting, file & email encryption, file backup & wiping, calendar date conversion and more

The programs shown below are all hand‑crafted for functionality and ease‑of‑use. They run with all versions of Windows, and on Macs with an emulator. All of them are free to download (as trial versions).

Click on a program title for further information, or click on a thumbnail image for full‑size, then click the back arrow in your browser to return to this page.


Five Cellular Automata

PCA thumbnail

Radian-Degree Calculator

RDC thumbnail

Prime Factors

PRF thumbnail

You can purchase a user license by using credit/debit card, amazon pay or bitcoin.

Single-user license terms

Hermetic Systems has been
publishing software since year 2000.
This page last modified
on March 7, 2021.