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.

Favtutors AI Tools - Check out FavTutor's AI Coding Tools for students and programmers including AI Code Generator, Debugger, and Converter.

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

Obviously.ai - The entire process of running Data Science - building Machine Learning algorithm, explaining results and predicting outcomes, packed in one single click.

English AI - Practice conversation in English with AI

Stenography - Stenography combines state of the art AI technology (OpenAI Codex) and code parsing techniques to create a smart codebase documenter.