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.

Kodezi - Grammarly For Programmers

Andy Chatbot - Learn and practice English with exercises, grammar and games

Synonymful - Improve your vocabulary and communicate like a pro.

English AI - Practice conversation in English with AI