Johnny Grammar's Word Challenge is an application suitable for Android and IOS devices. It is really beneficial for students who learn English and want to improve their knowledge of grammar and vocabulary. The aim of the game is to answer as many correct questions as possible within a minute, with the user receiving badges depending on his performance (Grammar Guru, Word Wizard and Supreme Speller badges). By winning badges the player is placed on a leaderboard competing with other players worldwide.
One of the most popular and well-known tools for learning a language online is Duolingo. Duolingo is completely free, easy to use and makes it a lot of fun the acquisition of a new language. There is a variety of languages you can choose from, including English, Spanish, French, German, Italian, Portuguese, Russian, Dutch, Swedish, Turkish, Japanese, Norwegian, Danish, Polish, Hebrew, Vietnamese, Greek, Ukrainian, Welsh, Hungarian, Swahili, Korean, Romanian, Czech and Chinese.