Confirm this as lite does not include the wifi by default - it does have the wired ethernet port but the wireless relay kit is a seperate purchase.
Intellicenter lite vs full - lite does not have breakers (load center) - if you have a seperate sub panel at the pool then lite is fine. With the load center version you will have easier ability to add required gfci breakers for pumps and 120v lights, gfci convenience receptacle, etc.
For me, I like having all of the pool related control in a single app. In addition, of you eventually upgrade to multicolor led lighting, intellicenter will have the ability to control color changes.