Duolingo: Language Lessons vs Oxford-River Books Concise
A data-backed head-to-head — estimated revenue, downloads, ratings and pricing side by side, from live App Store signals. Updated continuously.
Revenue / mo
$9.6M–$32M
$2–$30
Downloads / mo
2.5M–11M
1–2
Rating
★ 4.72 (5.4M)
★ 5.00 (1)
Pricing
Free + IAP
Paid $9.99
Category
Education
Education
Released
13.7y ago
13.4y ago
Verdict: Duolingo: Language Lessons earns more — an estimated $9.6M–$32M/mo, versus $2–$30/mo for Oxford-River Books Concise.