A free app for Android, by akaon.

Musio Talk – Let’s Go Edition is an English education app for all students. In this app, you can use a real AI (Artificial Intelligence) tutor to help you speak English fluently. With the help of this app, you can learn to speak English in a short time. 

With Let’s Go 5th Edition, one of the best-selling textbook series in the world from Oxford University Press, students may study English using tried-and-true technique and enjoyable group projects. Encourage kids to enjoy learning English by getting them communicating right away.

The app has an AI chat friend that you can talk to.