Duolingo: Language Lessons vs Sainte-Chapelle Visitor Guide
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–$95M
$1–$5
Downloads / mo
4.1M–17M
3–20
Rating
★ 4.73 (5.2M)
★ 1.80 (5)
Pricing
Free + IAP
Free + IAP
Category
Education
Education
Released
13.6y ago
10.4y ago
Verdict: Duolingo: Language Lessons earns more — an estimated $23M–$95M/mo, versus $1–$5/mo for Sainte-Chapelle Visitor Guide.