Hallo is an AI‑powered language‑learning app that lets users engage in short spoken conversations with a virtual teacher. Users can practice speaking for five minutes a day, receiving automated feedback on fluency, grammar and vocabulary, while progress is tracked through rewards and achievements. The app also offers a community of learners and free access to more than fifty languages, with an optional subscription for unlimited practice and additional features. Its approach centers on conversation‑based speaking practice guided by artificial intelligence.