無料でロシア語を学ぼう 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
$6–$30
$23M–$96M
Downloads / mo
10–50
3.4M–14M
Rating
★ 4.00 (23)
★ 4.73 (5.2M)
Pricing
Free + IAP
Free + IAP
Category
Education
Education
Released
12.6y ago
13.6y ago
Verdict: Duolingo: Language Lessons earns more — an estimated $23M–$96M/mo, versus $6–$30/mo for 無料でロシア語を学ぼう.