Ratings & Reviews performance provides an overview of what users think of your app. Here are the key metrics to help you identify how your app is rated by users and how successful is your review management strategy.
Spaced repetition technique. Allows all knowledge to be stored in long-term memory. At the same time spending less time on memorizing. The clue point is that the information must be repeated at certain increasing intervals. So you can learn a large amount of new foreign words, prepare for the exam and much more.