When you download a trial version of ModelRisk, and provide the activation code, it will operate in the same way as a fully licensed version of ModelRisk with two differences:
This behaviour will continue for the duration of the trial (15 days). A counter in the ModelRisk ribbon displays the number of days left until the trial period expires.
Example ModelRisk trial version graph with watermark
Once the trial period has expired, ModelRisk will revert to the Basic version. The Basic version has the same limitations as the trial, but also offers a reduces set of features, as listed in the following table. However, it can be used for free and has no expiry. The list of available features is quite sufficient for anyone wishing to start to learn the basics of Monte Carlo simulation and risk analysis.
The installed Basic version of ModelRisk can be upgraded by purchasing a license key. Upgrading does not require reinstallation of the software.