Period Calendar Period Tracker vs Workout For Kids Weight Loss
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
$130k–$690k
Downloads / mo
390k–1.6M
83k–340k
Rating
★ 4.89 (4.9M)
★ 4.83 (25k)
Pricing
Free + IAP
Free + IAP
Category
Health & Fitness
Health & Fitness
Released
14.5y ago
3.4y ago
Verdict: Their revenue estimates overlap ($620k–$3.4M/mo vs $130k–$690k/mo), so neither clearly earns more on the numbers alone.