레슨북 - 레슨에 관한 모든 기능을 하나로 ! 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
$0
$9.6M–$32M
Downloads / mo
5–20
2.5M–11M
Rating
★ 1.00 (3)
★ 4.72 (5.4M)
Pricing
Free
Free + IAP
Category
Education
Education
Released
10.6y ago
13.7y ago