Duolingo: Language Lessons vs Ruby Glint: Rock Identifier
A data-backed head-to-head — estimated revenue, downloads, ratings and pricing side by side, from live App Store signals. Updated continuously.
Revenue / mo
$9.0M–$30M
$400–$3k
Downloads / mo
2.4M–10M
600–3k
Rating
★ 4.73 (5.3M)
★ 4.67 (188)
Pricing
Free + IAP
Free + IAP
Category
Education
Education
Released
13.7y ago
1.7y ago
Verdict: Duolingo: Language Lessons earns more — an estimated $9.0M–$30M/mo, versus $400–$3k/mo for Ruby Glint: Rock Identifier.