Duolingo - Duolingo is a free language learning app for iOS, Windows and Android devices. The app makes learning a new language fun by breaking learning into small lessons where you can earn points and move up through the levels. Read more about Duolingo.

BurningVocabulary - Touch and highlight YouTube & Netflix subtitles

Synonymful - Improve your vocabulary and communicate like a pro.

Fluent - Fluent is a people-based marketing platform that uses real-time, one-to-one interaction to create custom audiences and serve personalized ads that drive performance at scale.

Vocly - Learn vocabulary in 50 languages with fun games

Simply Learn Japanese - Learn Japanese with 1000 phrases and intelligent flashcards