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.

Speakly’s methodology is built on teaching the 4,000 most statistically useful words of a target language. The app uses spaced repetition flashcards, listening exercises, and simulated conversations to embed these high-frequency words and phrases. By prioritizing practical vocabulary, Speakly helps beginners and intermediate learners build conversational confidence quickly. While light on deep grammar, its practical approach is highly efficient for those whose primary goal is to start speaking.