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
$12M–$40M
$300–$5k
Downloads / mo
6.6M–27M
200–900
Rating
★ 4.73 (48M)
★ 4.42 (270)
Pricing
Free + IAP
Paid $4.99
Category
Education
Education
Released
13.2y ago
3.7y ago
Verdict: Duolingo: Language Lessons earns more — an estimated $12M–$40M/mo, versus $300–$5k/mo for SkySafari Astronomy.