Duolingo: Language Lessons vs Vernier Caliper.
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
$0–$1
Downloads / mo
3.8M–16M
1–2
Rating
★ 4.73 (5.2M)
★ 1.00 (1)
Pricing
Free + IAP
Paid $0.99
Category
Education
Education
Released
13.6y ago
13.4y ago
Verdict: Duolingo: Language Lessons earns more — an estimated $23M–$96M/mo, versus $0–$1/mo for Vernier Caliper..