Duolingo: Language Lessons vs ETS 토익기출 수험서
A data-backed head-to-head — estimated revenue, downloads, ratings and pricing side by side, from live App Store signals. Updated continuously.
Revenue / mo
$23M–$95M
$0
Downloads / mo
14M–60M
7k–29k
Rating
★ 4.72 (46M)
★ 3.14 (2k)
Pricing
Free + IAP
Free
Category
Education
Education
Released
13.0y ago
14.6y ago
Verdict: Duolingo: Language Lessons earns more — an estimated $23M–$95M/mo, versus $0/mo for ETS 토익기출 수험서.