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
$3.7M–$13M
$8k–$41k
Downloads / mo
7.2M–29M
22k–90k
Rating
★ 4.73 (49M)
★ 4.41 (24k)
Pricing
Free + IAP
Free + IAP
Category
Education
Education
Released
13.3y ago
3.5y ago
Verdict: Duolingo: Language Lessons earns more — an estimated $3.7M–$13M/mo, versus $8k–$41k/mo for Grammar Check by AI Writing.