What do you think of my language learning app?

Hey, this language learning website lets you talk to an AI in another language to help you learn. Let me know what you think! PS: Please don't talk for too long, because I have limited computing power. I just want some feedback before I get more.

The site really needs some instructions explaining how to use it. It's not really clear what's supposed to happen. Do I type something in the Say something (in English) field and click/tap *Say It*? Or do I click *Say It* and then speak? When I do the latter, an error message like this displays:

Notice: Undefined offset: 1 in /home/u477137059/domains/oh-aha.com/public_html/kendasi/other-langs/chatter-de.php on line 68

As well, is the text at the top of the page supposed to be read to me automatically? Or is something else supposed to happen?

I like the direction. Maybe at second level you could input your questions in Spanish (or whatever language you set). That way you add a step of writing in the same language once you've gotten reasonably good at reading the responses.

Allow for mixed-in English words until the language improves enough to go full-on monolingual. That's how multilingual groups talk organically around each other anyway, so it's a nice progress.