Duolingo: Language Lessons vs ISC2 Official Exam 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
$9.6M–$32M
$300–$2k
Downloads / mo
2.5M–11M
400–2k
Rating
★ 4.72 (5.4M)
★ 4.39 (408)
Pricing
Free + IAP
Free + IAP
Category
Education
Education
Released
13.7y ago
5.4y ago
Verdict: Duolingo: Language Lessons earns more — an estimated $9.6M–$32M/mo, versus $300–$2k/mo for ISC2 Official Exam Prep.