Duolingo: Language Lessons vs Starfall Numbers
A data-backed head-to-head — estimated revenue, downloads, ratings and pricing side by side, from live App Store signals. Updated continuously.
Revenue / mo
$9.6M–$32M
$30–$600
Downloads / mo
2.5M–11M
10–80
Rating
★ 4.72 (5.4M)
★ 3.23 (35)
Pricing
Free + IAP
Paid $4.99
Category
Education
Education
Released
13.7y ago
12.7y ago
Verdict: Duolingo: Language Lessons earns more — an estimated $9.6M–$32M/mo, versus $30–$600/mo for Starfall Numbers.