CardioSignal 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
$200–$2k
$84k–$450k
Downloads / mo
1k–4k
320k–1.3M
Rating
★ 1.59 (—)
★ 4.36 (68k)
Pricing
Free + IAP
Free + IAP
Category
Medical
Medical
Released
—
7.0y ago
Verdict: Microphone Amplifier earns more — an estimated $84k–$450k/mo, versus $200–$2k/mo for CardioSignal.