app开发一千题 for iOS开发 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
$0–$2
$9.6M–$32M
Downloads / mo
1–2
2.5M–11M
Rating
★ 5.00 (1)
★ 4.72 (5.4M)
Pricing
Free + IAP
Free + IAP
Category
Education
Education
Released
8.4y ago
13.7y ago
Verdict: Duolingo: Language Lessons earns more — an estimated $9.6M–$32M/mo, versus $0–$2/mo for app开发一千题 for iOS开发.