Heart Rate Monitor - iCardiac vs Period Calendar Period Tracker
A data-backed head-to-head — estimated revenue, downloads, ratings and pricing side by side, from live App Store signals. Updated continuously.
Revenue / mo
$64k–$260k
$3.8M–$16M
Downloads / mo
99k–400k
1.4M–5.7M
Rating
★ 4.48 (460)
★ 4.89 (4.9M)
Pricing
Free + IAP
Free + IAP
Category
Health & Fitness
Health & Fitness
Released
2mo ago
14.3y ago
Verdict: Period Calendar Period Tracker earns more — an estimated $3.8M–$16M/mo, versus $64k–$260k/mo for Heart Rate Monitor - iCardiac.