Duolingo: Language Lessons vs Question.AI-Math Calculator
A data-backed head-to-head — estimated revenue, downloads, ratings and pricing side by side, from live App Store signals. Updated continuously.
Revenue / mo
$3.3M–$11M
$41k–$220k
Downloads / mo
2.7M–12M
60k–250k
Rating
★ 4.72 (5.5M)
★ 4.70 (163k)
Pricing
Free + IAP
Free + IAP
Category
Education
Education
Released
13.9y ago
3.3y ago
Verdict: Duolingo: Language Lessons earns more — an estimated $3.3M–$11M/mo, versus $41k–$220k/mo for Question.AI-Math Calculator.