试卷宝-拍试卷还原空白，整理专属错题本 vs DuckDuckGo, optional Duck.ai
A data-backed head-to-head — estimated revenue, downloads, ratings and pricing side by side, from live App Store signals. Updated continuously.
Revenue / mo
$50–$400
$300k–$1.7M
Downloads / mo
100–600
730k–3.0M
Rating
★ 4.80 (260)
★ 4.85 (2.4M)
Pricing
Free + IAP
Free + IAP
Category
Utilities
Utilities
Released
5.4y ago
13.1y ago
Verdict: DuckDuckGo, optional Duck.ai earns more — an estimated $300k–$1.7M/mo, versus $50–$400/mo for 试卷宝-拍试卷还原空白，整理专属错题本.