Harriet Lane Handbook vs Microphone Amplifier
A data-backed head-to-head — estimated revenue, downloads, ratings and pricing side by side, from live App Store signals. Updated continuously.
Revenue / mo
$10–$200
$84k–$450k
Downloads / mo
70–300
320k–1.3M
Rating
★ 4.76 (189)
★ 4.36 (68k)
Pricing
Free + IAP
Free + IAP
Category
Medical
Medical
Released
12.0y ago
7.0y ago
Verdict: Microphone Amplifier earns more — an estimated $84k–$450k/mo, versus $10–$200/mo for Harriet Lane Handbook.