常春藤108課綱核心單字 vs Duolingo: Language Lessons
A data-backed head-to-head — estimated revenue, downloads, ratings and pricing side by side, from live App Store signals. Updated continuously.
Revenue / mo
$4–$20
$24M–$98M
Downloads / mo
1–4
3.5M–15M
Rating
★ 3.40 (—)
★ 4.72 (46M)
Pricing
Paid $5.99
Free + IAP
Category
Education
Education
Released
3.0y ago
13.1y ago
Verdict: Duolingo: Language Lessons earns more — an estimated $24M–$98M/mo, versus $4–$20/mo for 常春藤108課綱核心單字.