Duolingo: Language Lessons vs Probability Calculator Plus
A data-backed head-to-head — estimated revenue, downloads, ratings and pricing side by side, from live App Store signals. Updated continuously.
Revenue / mo
$23M–$96M
$3–$20
Downloads / mo
3.8M–16M
2–6
Rating
★ 4.73 (5.2M)
★ 3.67 (3)
Pricing
Free + IAP
Paid $2.99
Category
Education
Education
Released
13.6y ago
4.1y ago
Verdict: Duolingo: Language Lessons earns more — an estimated $23M–$96M/mo, versus $3–$20/mo for Probability Calculator Plus.