Duolingo: Language Lessons vs QUARTET Vocab & Kanji
A data-backed head-to-head — estimated revenue, downloads, ratings and pricing side by side, from live App Store signals. Updated continuously.
Revenue / mo
$24M–$98M
$8–$40
Downloads / mo
3.5M–15M
10–50
Rating
★ 4.72 (46M)
★ 4.25 (18)
Pricing
Free + IAP
Paid $0.99
Category
Education
Education
Released
13.1y ago
6.7y ago
Verdict: Duolingo: Language Lessons earns more — an estimated $24M–$98M/mo, versus $8–$40/mo for QUARTET Vocab & Kanji.