Boeing 737 NG Diagrams 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
$600–$10k
$3.2M–$11M
Downloads / mo
80–400
2.7M–12M
Rating
★ 4.92 (325)
★ 4.72 (5.5M)
Pricing
Paid $19.99
Free + IAP
Category
Education
Education
Released
12.7y ago
13.9y ago
Verdict: Duolingo: Language Lessons earns more — an estimated $3.2M–$11M/mo, versus $600–$10k/mo for Boeing 737 NG Diagrams.