Duolingo: Language Lessons vs The Sky by Redshift
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
$300–$2k
Downloads / mo
7.0M–29M
1k–4k
Rating
★ 4.73 (49M)
★ 4.40 (2k)
Pricing
Free + IAP
Free + IAP
Category
Education
Education
Released
13.4y ago
5.4y ago
Verdict: Duolingo: Language Lessons earns more — an estimated $3.5M–$12M/mo, versus $300–$2k/mo for The Sky by Redshift.