Clozemaster

Clozemaster is a language-learning app built around the "cloze" fill-in-the-blank exercise. It offers thousands of fill-in-the-blank sentences across 50+ languages and over 170 language pairings, teaching vocabulary in context rather than through isolated word lists. Sentences are ordered by word frequency and reviewed through spaced repetition. The core experience is free to play, with a Pro tier unlocking advanced features. The service describes itself as a small, independent team serving a community of hundreds of thousands of learners.

Clozemaster began as a side project addressing a common frustration among language learners: after finishing a course and knowing a few hundred words, learners hit a wall, with textbooks boring, flashcards tedious, and real content overwhelming. The service was built to fill that gap by teaching vocabulary through real sentences rather than isolated word lists, using a "cloze test" — a sentence with one word missing that the learner fills in. It has since grown into a community of hundreds of thousands of learners across 50+ languages, and describes itself as a small, independent team.

Learn vocabulary through real sentences, not isolated word lists; go beyond flashcards.

• Clozemaster app

  A language-learning app offering thousands of fill-in-the-blank sentences in 50+ languages and over 170 language pairings, with spaced repetition and word-frequency-based progress tracking.

• Clozemaster Pro

  A paid tier that unlocks advanced features for power users; the core experience is free to play.

1. 1Learn language in context - Clozemasterclozemaster.com
2. 2Learn language in context - Clozemasterclozemaster.com