We introduce a language learning system that uses Big Data analysis with billions of reading materials, bilingual sentences in many language pairs.

We apply state-of-the-art language technologies to detect languages, estimate levels of words/documents, recommend suitable words, sentences and learning materials.

A video screen record of Lextend


Lextend is a compact and comprehensive language learning system that uses AI to help you to build vocabulary, annotate your notes, suggest grammars, reading materials; a social network where learners can share, communicate and learn with others.

We are looking for beta users, if anyone is interested in it, please drop me a message (with the language pair you want to learn). We hope to help people to learn languages faster, more efficiently and with more fun!

Lextend Chatbot in Facebook Messenger

No installation needed

Lookup dictionary using Facebook Messenger

Play game "Guessing Words"

Contact Us for Beta Testing