Duolingo: Language Lessons vs ISA Flashcards: Arborist Exam
A data-backed head-to-head — estimated revenue, downloads, ratings and pricing side by side, from live App Store signals. Updated continuously.
Revenue / mo
$23M–$93M
$0
Downloads / mo
14M–60M
70–400
Rating
★ 4.60 (46M)
★ 4.38 (202)
Pricing
Free + IAP
Free
Category
Education
Education
Released
13.0y ago
1.3y ago
Verdict: Duolingo: Language Lessons earns more — an estimated $23M–$93M/mo, versus $0/mo for ISA Flashcards: Arborist Exam.