Software Evaluation License Agreement
If you’re offering a limited version of your application or the full demo version for a trial period, you’ll want your software lawyer to prepare a software evaluation license to restrict user rights until they purchase a EULA for the full version from you or one of your retailers.
Note that a trial version software license will be different from a beta testing license. In addition, the terms and conditions of a demo license will vary somewhat depending upon whether use of the software is free during the trial period, whether there is an upgrade free from a limited version or continued use of a full version after a trial period has expired (e.g. 30 days), and a variety of related factors.