Useful  but the Android and PC Desktop versions of this software are missing many of the useful editing features available to iPhone/Apple users. You can waste a lot of time watching tutorials  hoping that they will get around to mentioning the existence of Android or PC or showing the non-Apple/iPhone interfaces (spoiler: they don't). And you can waste a lot of time trying to find the missing features you saw in the tutorials  (spoiler: they are not there). Finally  you can search their manual and supporting documentation for some sort of acknowledgement that these features are missing form the Android/PC versions of the software  so you can allow yourself to stop searching in vain and go to bed  but this search will be fruitless too. So  if you want an intelligent program training you on flashcards using spaced repetition  and you don't mind that you can do only the most nominal of editing of the cards themselves  this one is for you. But don't expect greatness  or supporting materials for non Apple users.
August 28 2016