The first 'unit' seems helpful. It's just a disappointment that it's 5 minutes of tutorial and then a paywall. I work with special needs students and we recently got a deaf student and have wanted to learn ASL. There are so many free language apps out there, this could be used to genuinely help those disadvantaged. This charges, and not just some, but over $100 a year at it's cheapest. Anyone reading this, find another avenue, don't stop trying to find a way, but don't support this robbery.