Duolingo: Language Lessons vs Molecules by Theodore Gray
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
$100–$500
Downloads / mo
4.1M–17M
10–70
Rating
★ 4.73 (5.2M)
★ 4.62 (29)
Pricing
Free + IAP
Paid $9.99
Category
Education
Education
Released
13.6y ago
11.6y ago
Verdict: Duolingo: Language Lessons earns more — an estimated $23M–$95M/mo, versus $100–$500/mo for Molecules by Theodore Gray.