LangGo is an AI‑powered language learning app that lets users practice a second language through text‑based conversations with an intelligent chatbot. Users select topics of interest, type messages, and receive instant feedback on vocabulary, spelling, and grammar, while the system adapts to their proficiency level. The app also includes a built‑in translation tool to keep conversations flowing and tracks vocabulary growth over time. Its approach combines conversational practice with AI‑driven feedback and self‑paced learning.