Duolingo: Language Lessons vs Enginr: AI Project Builder
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
$90–$400
Downloads / mo
4.1M–17M
40–200
Rating
★ 4.73 (5.2M)
★ 5.00 (1)
Pricing
Free + IAP
Paid $2.99
Category
Education
Education
Released
13.6y ago
26d ago
Verdict: Duolingo: Language Lessons earns more — an estimated $23M–$95M/mo, versus $90–$400/mo for Enginr: AI Project Builder.