Period Calendar Period Tracker vs Six Pack in 30 Days
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
$270k–$1.5M
Downloads / mo
390k–1.6M
290k–1.2M
Rating
★ 4.89 (4.9M)
★ 4.93 (2.8M)
Pricing
Free + IAP
Free + IAP
Category
Health & Fitness
Health & Fitness
Released
14.5y ago
8.7y ago
Verdict: Their revenue estimates overlap ($620k–$3.4M/mo vs $270k–$1.5M/mo), so neither clearly earns more on the numbers alone.