Spiritually, Callisto can trace its roots to an open source project called Zephyr Basecamp (ZBC), also by Callisto's author.

While ZBC was a good program, various factors prompted a full rewrite.  That rewrite became the Jupiter III project, which is a full featured business management system.

After awhile, Callisto (yet a further rewrite) evolved.  It is in its fifth full rewrite.  As good as Jupiter III is, it is too complex for smaller businesses.

If you are looking for a small buisness management application for windows or linux, take a look at Callisto.

Callisto and Jupiter III are copyrighted and licensed products distributed by
Red Rocket Consortium, Inc.

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