Quizby

Quizby is a game to practice vocabulary, in the form of a fast-paced quiz, where you can learn:
-Spanish
-French
-Portuguese
-German
-Italian
-English
-Dutch
-Japanese
-Russian
-Chinese

Features:
-More than 5,000 words, ordered by usage
-Spaced Repetition – increasing intervals of time between subsequent review of previously learned words, to best retain the knowledge acquired
-Level System – keep track of your progress
-Pronunciation will enable you to also hear how those foreign words sound like
-The aim is to learn, not win, so if you pick the wrong choice the app will tell you the correct answer, and reveal what the wrong answer means
-Offline – play it in the elevator, plane, boat, remote island...

It's the fastest way to improve your vocabulary of a foreign language in the palm of your hands!