Duolingo: Language Lessons vs eco検定 問題集アプリ エコ検定
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
$9–$40
Downloads / mo
3.5M–15M
4–20
Rating
★ 4.72 (46M)
★ 3.86 (—)
Pricing
Free + IAP
Paid $3.49
Category
Education
Education
Released
13.1y ago
3.7y ago
Verdict: Duolingo: Language Lessons earns more — an estimated $24M–$98M/mo, versus $9–$40/mo for eco検定 問題集アプリ エコ検定.