Demo and full licenses are the same software exactly.
So, when you are trying your demo license for 14 days, you will be able to test all the features and presets of the plug-in until the demo expires. After that, the plug-in can't be used until you activate a full license in iLok License Manager.
Please remember, that a license and an activation are different things. When you purchase a copy of one of our plug-ins, you get one license with three simultaneous activations. You can redeem your license once to your iLok account, after which you are free to use your activations as you please. Managing the activations happen wholly from the iLok License Manager.