Both are great appliances used to straighten teeth if you have a malloclusion. ( teeth that are not aligned straight when your teeth a clenched) , both have different price points and both do the same thing. invisalign is FDA-approved, BPA, BPS, latex and gluten-free. Clear Correct is Polyurethane resin, FDA-approved, BPA and phthalate-free. The main difference is that Clear Correct is thinner than Invisalign. Many people cite this as being an advantage, some say it is a dis-advantage. Read more here at our discuss on Invisalign versus clear correct