Duolingo: Language Lessons vs Nibble: Daily Learning & Quiz

A data-backed head-to-head — estimated revenue, downloads, ratings and pricing side by side, from live App Store signals. Updated continuously.

Duolingo: Language LessonsNibble: Daily Learning & Quiz

Verdict: These revenue estimates aren't directly comparable: Duolingo: Language Lessons's downloads are measured from Google Play install counts, while Nibble: Daily Learning & Quiz's are modeled from rating activity (a wider ± range).