Duolingo is arguably the most recognized language learning app, known for its game-like interface that makes starting a new language feel fun and accessible. Through points, streaks, and leaderboards, it excels at motivating users to build a consistent daily practice habit. The bite-sized lessons are ideal for learning vocabulary and basic sentence structures on the go. However, the platform offers weak explicit grammar explanations and limited opportunities for real speaking practice, meaning its content can feel shallow for those aiming to move beyond a beginner level. It serves best as an engaging starting point or a vocabulary-building supplement.

Mango Languages offers a structured, conversation-focused curriculum available for a wide range of languages. Its methodology involves breaking down sentences into component parts and encouraging the learner to construct them piece by piece. Lessons emphasize practical communication and are enriched with cultural notes. A notable feature is the voice comparison tool, which allows users to record themselves and visually compare their pronunciation waveform to that of a native speaker. Many users can access Mango Languages for free through participating public libraries, making it a very accessible option.