Jest Jewel 앱 분석 (10월 6일)

Jest Jewel is a calm, offline journal for backyard pool care. Log strip readings for pH, free chlorine, alkalinity, and temperature with simple steppers and presets, then see at-a-glance gauges, dosing tips, and a care checklist that fits your rhythm. Follow trends over time with an ideal-range band, open a dose calculator sized to your pool volume, and browse a learn library of guides, FAQ, chemicals, and problem playbooks. Set your pool name, surface, and volume once—everything stays on your device.