Clozemaster
Fill-in-the-blank sentence drills for vocabulary after you know the basics.
AppsToolsFreemiumIntermediateAdvancedA2–C1Any language
What it actually is
Built on Tatoeba sentences, it drills words in context by frequency band across 50+ languages and 170+ language pairings, with a genuinely generous free tier. It explicitly starts where beginner apps end, so it is the natural 'what now?' answer for someone who finished a Duolingo tree. Sentences are crowd-sourced and occasionally awkward or oddly specific, and it teaches nothing about grammar explicitly.
What it covers
- Vocabulary
- Reading
- Grammar
Learners who used it
From field notes — real posts we read and linked. What they say is their account, not our finding.
- Twenty-seven apps over eight years, reviewed one by one · used it for SRS
Their verdict: highly recommended; paid for it