Lite Edition or Special Edition.
Depending on the product, they can provide a pretty substantial feature set or miss so many features that they're barely usable, pretty much only a teaser to make you want to upgrade to the flagship version.
A trial version would usually refer to the full program w/ other limitations - fully working for 14 days, or save-disabled, or audio fading in and out every x seconds.
TCB - Tea, Cats, Books...