The Trial-Version has no limitations in terms of functionality or availability of features, but it will work only for 30 days after which you have to provide valid license-information.

After 30 days iLanguage turns into a Free Version with almost full functionality. The limitation of the Free Version is that words can not be added to wordbooks and dictionaries which already contain 100 words or more. That's all.

There is no other limitation and therefore iLanguage will remain a helpful multi-dictionary and study-tool even if it is not registered.