賴世雄英文文法 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
$20–$400
$12M–$40M
Downloads / mo
9–40
6.6M–27M
Rating
★ 4.80 (265)
★ 4.73 (48M)
Pricing
Paid $6.49
Free + IAP
Category
Education
Education
Released
11.5y ago
13.2y ago
Verdict: Duolingo: Language Lessons earns more — an estimated $12M–$40M/mo, versus $20–$400/mo for 賴世雄英文文法.