Word Coach is an Android application developed by twentyStudio that helps you improve your English vocabulary in an interactive and engaging way. With more than 5000 words, you can memorize new words and keep track of the ones you have already learned.

The app consists of a quiz format where you are given a word and must choose the correct meaning from multiple choices. You can also check the answers to the quiz with their respective synonyms and antonyms. In case you fail, the app includes a list of failed words to recover those you missed. The app is completely free and provides a fun way to learn new words and improve your vocabulary.

Overall, Word Coach is a great app for anyone looking to improve their English vocabulary. It is easy to use, has a large database of words, and provides a fun and interactive way to learn.