Period Calendar Period Tracker vs Seconds Pro - Interval Timer
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
$300–$6k
Downloads / mo
390k–1.6M
100–600
Rating
★ 4.89 (4.9M)
★ 4.56 (4k)
Pricing
Free + IAP
Paid $6.99
Category
Health & Fitness
Health & Fitness
Released
14.6y ago
13.7y ago
Verdict: Period Calendar Period Tracker earns more — an estimated $620k–$3.4M/mo, versus $300–$6k/mo for Seconds Pro - Interval Timer.