shareware

n. software available at no cost over the Internet but for which payment of a nominal registration fee is expected after a trial use (Computers)

Shareware is a marketing method for computer software. Shareware software is typically obtained free of charge, often by downloading from the Internet or on magazine cover-disks. A user tries out the program, and thus shareware has also been known as "try before you buy". A shareware program is accompanied by a request for payment, and the software's distribution license often requires such a payment.
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Noun
1. software that is available free of charge; may be distributed for evaluation with a fee requested for additional features or a manual etc.
(hypernym) software, software system, software package, package

shareware, shareware program, software designed to be purchased after trial use

n. shareware, shareware program, software designed to be purchased after a trial use (Computers)