Andy Chatbot - Learn and practice English with exercises, grammar and games
Language Learning with Netflix - Use movies as study material for language learning
BoldVoice - Accent coaching app for non-native English speakers
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.
English For Tech - The first modern English textbook for people in tech.
Caption - Open-source captioning tool to help find the right subtitles.