Duolingo: Language Lessons vs Osmo Reading Level Finder
A data-backed head-to-head — estimated revenue, downloads, ratings and pricing side by side, from live App Store signals. Updated continuously.
Revenue / mo
$4.4M–$18M
$0
Downloads / mo
2.9M–12M
5–20
Rating
★ 4.73 (5.3M)
★ 3.11 (9)
Pricing
Free + IAP
Free
Category
Education
Education
Released
13.6y ago
3.9y ago