1
It learns what you know
After language class, on your way home, just talk to it. It keeps track of the words, expressions and grammar you can use and understand, then targets your weak points, or whatever you or your teacher want you to get better at.
2
Always at your level
The AI-tutor speaks from the words you know, brings back the ones you are about to forget, and introduces new words at the pace that is right for you, so you are never overwhelmed.
3
You choose the topic
Talk about whatever you like: your day, your hobbies, a trip you are planning. Or show it a photo or a file, like a page from your textbook or today's homework, and it talks it through with you, in words you know.