California CDL Permit Practice vs Duolingo: Language Lessons
A data-backed head-to-head — estimated revenue, downloads, ratings and pricing side by side, from live App Store signals. Updated continuously.
Revenue / mo
$50–$300
$4.4M–$18M
Downloads / mo
100–500
2.9M–12M
Rating
★ 4.79 (233)
★ 4.73 (5.3M)
Pricing
Free + IAP
Free + IAP
Category
Education
Education
Released
4.8y ago
13.6y ago
Verdict: Duolingo: Language Lessons earns more — an estimated $4.4M–$18M/mo, versus $50–$300/mo for California CDL Permit Practice.