Duolingo: Language Lessons vs SPI言語 【Study Pro】
A data-backed head-to-head — estimated revenue, downloads, ratings and pricing side by side, from live App Store signals. Updated continuously.
Revenue / mo
$24M–$98M
$400–$2k
Downloads / mo
3.5M–15M
200–1k
Rating
★ 4.73 (46M)
★ 4.41 (—)
Pricing
Free + IAP
Paid $2.49
Category
Education
Education
Released
13.1y ago
14.4y ago
Verdict: Duolingo: Language Lessons earns more — an estimated $24M–$98M/mo, versus $400–$2k/mo for SPI言語 【Study Pro】.