Period Calendar Period Tracker vs Timeshifter Shift Work
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
$100–$800
Downloads / mo
390k–1.6M
80–400
Rating
★ 4.89 (4.9M)
★ 2.83 (39)
Pricing
Free + IAP
Free + IAP
Category
Health & Fitness
Health & Fitness
Released
14.6y ago
4.8y ago
Verdict: Period Calendar Period Tracker earns more — an estimated $620k–$3.4M/mo, versus $100–$800/mo for Timeshifter Shift Work.