There are many individual language learning apps that one can use with his/her students on the iPad. There are also two online resources that support blended learning with students working in and out of school for language learning.
The iTalki site is a provider of individual language learning. One signs up for the service and works with a tutor. The Duolingo for Education platorm really provides whole class support with each student having his/her own account.
Image Sources: iTalki Duolingo
