Duolingo: Language Lessons vs SkySafari Astronomy
A data-backed head-to-head — estimated revenue, downloads, ratings and pricing side by side, from live App Store signals. Updated continuously.
Revenue / mo
$3.5M–$12M
$100–$3k
Downloads / mo
7.0M–29M
400–2k
Rating
★ 4.73 (49M)
★ 4.37 (279)
Pricing
Free + IAP
Paid $0.99
Category
Education
Education
Released
13.4y ago
3.9y ago
Verdict: Duolingo: Language Lessons earns more — an estimated $3.5M–$12M/mo, versus $100–$3k/mo for SkySafari Astronomy.