高圧ガス販売主任者第二種販売合格アプリ 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
$23M–$96M
Downloads / mo
40–200
3.8M–16M
Rating
★ 3.84 (25)
★ 4.73 (5.2M)
Pricing
Paid
Free + IAP
Category
Education
Education
Released
1.3y ago
13.6y ago