Duolingo: Language Lessons vs Grammar Check by AI Writing
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
$42k–$180k
Downloads / mo
14M–60M
78k–320k
Rating
★ 4.72 (46M)
★ 4.34 (23k)
Pricing
Free + IAP
Free + IAP
Category
Education
Education
Released
13.0y ago
3.3y ago
Verdict: Duolingo: Language Lessons earns more — an estimated $23M–$96M/mo, versus $42k–$180k/mo for Grammar Check by AI Writing.