Go to link given below from there u can download the app, also the app available is only for iPhone not for any other Plattform http://www.italki.com/mobileapp/ Or u can log using the moblie italki site, the link is given below http://www.italki.com/?view=mobile

In my experience, most of those cell phone apps are hyped up. They can be useful perhaps but aren't you "that great". Anyway, your question: I don't know, but it is possible to e-mail the website with questions. I forget where the link is exactly, and they didn't respond to my question.