Duolingo: Language Lessons vs Marine Creatures Cards of Sea
A data-backed head-to-head — estimated revenue, downloads, ratings and pricing side by side, from live App Store signals. Updated continuously.
Revenue / mo
$23M–$96M
$1–$3
Downloads / mo
3.0M–13M
2–6
Rating
★ 4.73 (5.2M)
★ 4.67 (3)
Pricing
Free + IAP
Free + IAP
Category
Education
Education
Released
13.6y ago
6.2y ago
Verdict: Duolingo: Language Lessons earns more — an estimated $23M–$96M/mo, versus $1–$3/mo for Marine Creatures Cards of Sea.