We had sent our kids to a group after school program, but many of the other kids there ended-up speaking English--so our kids would hear English instead of the foreign language. Panda Tree tutors engage our kids in the foreign language, and so nearly 100% of the session is in the foreign language. Panda Tree also has a "free" companion website, which allows tutors to specifically assign vocabulary that they introduced during the session so that our kids can review material between lessons. Also, when schedules suddenly change, we can still, with diminished capacity, let our kids hold a session "on the road" using our smart phones.