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.
Reji - Improve your vocabulary hassle-free 📚
Wordd - Quickly look up vocabulary, abbreviations, acronyms, slang
Grammarly - Clear, effective, mistake-free writing everywhere you type.
Easy Ten - Learn any language with ten words a day.
BurningVocabulary - Touch and highlight YouTube & Netflix subtitles