Wordd - Quickly look up vocabulary, abbreviations, acronyms, slang

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.

Synonymful - Improve your vocabulary and communicate like a pro.

Memrise - Learn a new language with games, humorous chatbots and over 30,000 native speaker videos.

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.

Grammarly - Clear, effective, mistake-free writing everywhere you type.