Teuida: Learn Languages positions itself as an active learning alternative to passive consumption methods like watching foreign media. The application emphasizes speaking practice from the initial stages of language acquisition, distinguishing itself through first-person perspective scenarios that simulate real conversations. Developed by TEUIDA, the app targets practical communication skills rather than theoretical knowledge, using an approach that mirrors natural language acquisition processes. The core functionality revolves around interactive dialogue simulations where users respond to native speakers in contextual scenarios. The app employs speech recognition technology to evaluate pronunciation and provide immediate feedback. Content is structured around essential expressions and practical situations such as ordering food, asking for directions, or making introductions. Each lesson builds progressively, incorporating vocabulary reinforcement and grammar patterns within conversational contexts rather than isolated drills. User experience benefits from clean interface design with intuitive navigation and visual feedback mechanisms. The app maintains engagement through gamification elements including progress tracking, achievement badges, and structured learning paths. Real-world usage patterns show consistent daily practice sessions averaging 10-15 minutes, with the app's mobile-first design facilitating on-the-go learning. The voice recognition system demonstrates reasonable accuracy for beginner-level pronunciation assessment, though performance varies with background noise conditions. User feedback consistently highlights the app's effectiveness for beginners, with multiple five-star reviews noting rapid progress in conversational ability. Reviewer 조세린 (July 6, 2025) describes the app as 'very useful for me to learn Korean as a beginner' while noting its enjoyable nature. Bhishta Sabirie (July 6, 2025) reported learning 'an entire paragraph in one week,' indicating accelerated acquisition through the speaking-focused methodology. The sentiment across reviews emphasizes the app's ability to create a sense of real conversation, with user ChatGPT-Addicted (July 6, 2025) noting 'I feel like I'm actually talking to someone.' Strengths include the innovative first-person approach that reduces speaking anxiety and the practical scenario-based content. Limitations involve relatively narrow language selection compared to comprehensive platforms and less emphasis on writing/reading components. The app proves most effective for learners prioritizing spoken communication skills over comprehensive language mastery, particularly those preparing for travel or basic conversational needs.