Busuu is a combination of thematic courses with the idea of a social platform. The social aspect is used perfectly because the app offers checking for short written forms by native speakers of a given language. Therefore, if you do not have an English friend on hand, you can work with busuu. The minus of the program is paid access to grammar exercises.
It's a real language learning factory! It's not only a dictionary, but also games, conjugation, tests and forum. If we set up an account, we get access to lessons with flashcards. We can also create our own sets. This dictionary is also available as a tablet and smartphone application.
Duolingo is a system of small steps. Short lessons are divided thematically. How much time is devoted to learning per day is up to us. The application has an interesting motivational system and allows competition between friends, making learning even more interesting. Advantages are: free, intuitive, fun learning, adapted to the user's level.
If you are an app freak, it's good to use different applications to learning English too. I will show you many handy apps to keep learning English in a few minutes. Furthermore, I will show you many online dictionaries and websites to learn languages.