You can download an evaluation of Compscore3. This is a fully functional program, the only limitation being that the program and reports are branded as "Unlicenced Evaluation".
Compscore3 Licensing Policy
You can only use an Unlicensed Evaluation Version under the following circumstances:-
This unlicenced version may not be used to score actual sessions or events, except when genuinely evaluating or learning the program, without prior authorisation from Altosoft.
Full Compscore3 Licence
A Compscore3 licence permits you to install Compscore3 on any PCs: