123 Numbers Flashcards PRO 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
$6–$100
$9.6M–$32M
Downloads / mo
9–40
2.5M–11M
Rating
★ 5.00 (16)
★ 4.72 (5.4M)
Pricing
Paid $1.99
Free + IAP
Category
Education
Education
Released
5.8y ago
13.7y ago
Verdict: Duolingo: Language Lessons earns more — an estimated $9.6M–$32M/mo, versus $6–$100/mo for 123 Numbers Flashcards PRO.