Duolingo: Language Lessons vs Planetary Clock
A data-backed head-to-head — estimated revenue, downloads, ratings and pricing side by side, from live App Store signals. Updated continuously.
Revenue / mo
$3.3M–$11M
$20–$500
Downloads / mo
2.7M–12M
70–400
Rating
★ 4.72 (5.5M)
★ 4.83 (35)
Pricing
Free + IAP
Paid $0.99
Category
Education
Education
Released
13.9y ago
12.5y ago
Verdict: Duolingo: Language Lessons earns more — an estimated $3.3M–$11M/mo, versus $20–$500/mo for Planetary Clock.