The Jargon File (version 4.4.7, 29 Dec 2003):

careware
 /keir'weir/, n.

    A variety of shareware for which either the author suggests that some
    payment be made to a nominated charity or a levy directed to charity is
    included on top of the distribution charge. Syn.: charityware; compare 
    crippleware, sense 2.


The Free On-line Dictionary of Computing (30 December 2018):

careware
charityware

   /keir'weir/ (Or "charityware") Shareware for which either
   the author suggests that some payment be made to a nominated
   charity or a levy directed to charity is included on top of
   the distribution charge.

   Compare crippleware.

   [Jargon File]

   (1994-12-16)