Duolingo: Language Lessons vs Happy + Sad Face: Reward Chart
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–$95M
$9–$40
Downloads / mo
4.1M–17M
4–20
Rating
★ 4.73 (5.2M)
★ 4.75 (8)
Pricing
Free + IAP
Paid $2.99
Category
Education
Education
Released
13.6y ago
14.8y ago
Verdict: Duolingo: Language Lessons earns more — an estimated $23M–$95M/mo, versus $9–$40/mo for Happy + Sad Face: Reward Chart.