Period Calendar Period Tracker vs Sleep Sounds
A data-backed head-to-head — estimated revenue, downloads, ratings and pricing side by side, from live App Store signals. Updated continuously.
Revenue / mo
$620k–$3.4M
$17k–$96k
Downloads / mo
390k–1.6M
11k–46k
Rating
★ 4.89 (4.9M)
★ 4.34 (126k)
Pricing
Free + IAP
Free + IAP
Category
Health & Fitness
Health & Fitness
Released
14.5y ago
10.1y ago
Verdict: Period Calendar Period Tracker earns more — an estimated $620k–$3.4M/mo, versus $17k–$96k/mo for Sleep Sounds.