Is the mobile edition of duolingo offline? Or can it be used offline?
I just wanted to know because I'm leaving for a while somewhere but I want to continue practicing. (There is no internet there.)
If you have not completed the tree, then the current row (or so) should available offline.
However, when going back online, if might not sync and if so you will then lose your work. If that possibility bothers you, then don't do it. I just tell myself it is an opportunity to do more practice and get on with it. (OK, I might swear a bit first)