Heart Rate Variability Logger 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
$100–$600
$2.7M–$11M
Downloads / mo
10–70
1.0M–4.1M
Rating
★ 1.60 (50)
★ 4.89 (4.9M)
Pricing
Paid $11.99
Free + IAP
Category
Health & Fitness
Health & Fitness
Released
5.3y ago
14.3y ago
Verdict: Period Calendar Period Tracker earns more — an estimated $2.7M–$11M/mo, versus $100–$600/mo for Heart Rate Variability Logger.