天文学 3D+ 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
$6k–$23k
$24M–$97M
Downloads / mo
400–2k
6.9M–28M
Rating
★ 4.65 (875)
★ 4.73 (5.2M)
Pricing
Paid $500
Free + IAP
Category
Education
Education
Released
16.4y ago
13.6y ago
Verdict: Duolingo: Language Lessons earns more — an estimated $24M–$97M/mo, versus $6k–$23k/mo for 天文学 3D+.