Tandem is a language‑exchange platform that connects learners with native speakers for 1‑to‑1 and group conversations via text, audio, video, and voice notes. Users select a language, match with partners who share interests, and practice speaking, listening, and pronunciation through real‑time dialogue and group “Parties.” The app also offers translation tools, text corrections, and grammar tips to support accurate language use. It emphasizes conversational practice and peer interaction rather than structured lessons.