Dragon Dictation does voice recognition in a variety of languages.
Evernote lets you set up shared folders so that it is easy to record and collate orals.
You can also upload from a sound recording app such as AudioMemos to a shared Dropbox folder. In practice, this works better than rthe Evernote option.
Remember that students can directly upload work to Fronter via the camera roll.
There are plenty of Flashcard Apps out there.
Sites like StudyBlue let you share flashcards with others.
Consider setting up a Flipboard paper in the target language.
Many eBooks have an auto-translate function.