Duolingo: Language Lessons vs String Note Tutor
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
$2–$10
Downloads / mo
3.5M–15M
1–5
Rating
★ 4.73 (46M)
★ 0.00 (—)
Pricing
Free + IAP
Paid $2.99
Category
Education
Education
Released
13.1y ago
1.8y ago
Verdict: Duolingo: Language Lessons earns more — an estimated $24M–$98M/mo, versus $2–$10/mo for String Note Tutor.