Grammarly - Clear, effective, mistake-free writing everywhere you type.
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.
Foxtype Sentence Tree - visualize grammatical structure for any sentence.
Language Learning with Netflix - Use movies as study material for language learning
TabComplete - Secure Autocomplete for Chrome
Word Chain - Word Chain is an application related to words and forming the chains of letters.