Duolingo: Language Lessons vs ServSafe: Practice Test Prep
A data-backed head-to-head — estimated revenue, downloads, ratings and pricing side by side, from live App Store signals. Updated continuously.
Revenue / mo
$4.4M–$18M
$2k–$9k
Downloads / mo
2.9M–12M
2k–9k
Rating
★ 4.73 (5.3M)
★ 4.87 (950)
Pricing
Free + IAP
Free + IAP
Category
Education
Education
Released
13.6y ago
11mo ago
Verdict: Duolingo: Language Lessons earns more — an estimated $4.4M–$18M/mo, versus $2k–$9k/mo for ServSafe: Practice Test Prep.