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Best Overall Free App

Duolingo

The undisputed king of free language learning with 37+ languages, gamified lessons, and exercises covering reading, writing, and pronunciation. No other free app comes close in breadth or polish.

Pros
  • Completely free with 37+ languages for English speakers
  • Gamified structure builds daily habits effectively
  • Covers vocabulary, writing, translation, and pronunciation
  • ESL programs available for non-English native speakers
Cons
  • Grammar explanations are shallow compared to Babbel
  • Free tier has ads and limited hearts/lives
  • Better for vocabulary practice than deep conversational fluency
Why we recommend it

If you're starting from zero and want one app, this is it. The gamification keeps you coming back daily, and the content depth rivals paid competitors.

PCMag

Duolingo is simply the best free app for learning a new language or sharpening your skills. The free Duolingo language learning app easily rivals expensive alternatives.