Careware

Careware (also called charityware, helpware, or goodware) is software licensed in a way that benefits a charity.

Stevens was developing a user interface library and publishing the source code in monthly installments.

To distribute code to readers, Stevens suggested they send him an addressed stamped mailer with a blank diskette.

He also suggested that to express their appreciation they include a dollar, which he would donate to the local food bank in Brevard County, Florida.

"[6] For example, the vim text editor is free software but includes a request from its author, Bram Moolenaar, that users donate to ICCF Holland for work to help AIDS victims in Uganda.