Duolingo: Language Lessons vs Oklahoma CDL Test Prep
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
$5–$20
Downloads / mo
3.0M–13M
1–2
Rating
★ 4.73 (5.3M)
★ 5.00 (1)
Pricing
Free + IAP
Paid $12.99
Category
Education
Education
Released
13.6y ago
4.4y ago
Verdict: Duolingo: Language Lessons earns more — an estimated $23M–$95M/mo, versus $5–$20/mo for Oklahoma CDL Test Prep.