Dialogue exercises are written in advance: the topic is set, the lines are picked for your level, the conversation has an end. In the chat none of that applies. You write what you want, in any language, and get an answer in the language you are learning - at the difficulty set in your settings.
What people usually open it for
- To ask how to say a specific thing you need right now: on a trip, on a call, in an email.
- To work out why an exercise expected that particular version and not the one you wrote.
- To talk about your own subject - work, kids, a series - that isn't in the exercise list.
- To practise without a grade: the chat has no counter of correct answers.
What it can do mid-conversation
- “Translation” under NewLexi's line opens its translation into your native language.
- Select a word or a phrase in a line and choose “Learn” - it goes to your deck.
- A word added that way joins the review plan and comes back to you in cards and stories.
So the chat also works as a source of vocabulary: your deck gets the words you actually needed, not the ones a list picked for you.
What the chat does not do
It doesn't lead you through a programme and doesn't replace the daily plan: words from it aren't reviewed on their own, and level progress doesn't grow from one exchange. The chat is practice between exercises, not instead of them.