Duolingo: Language Lessons vs McGraw-Hill Education GRE Premium App
A data-backed head-to-head — estimated revenue, downloads, ratings and pricing side by side, from live App Store signals. Updated continuously.
Revenue / mo
$3.1M–$11M
$0
Downloads / mo
2.6M–11M
2–6
Rating
★ 4.72 (5.5M)
★ 2.67 (3)
Pricing
Free + IAP
Free
Category
Education
Education
Released
13.9y ago
12.4y ago