I’m building Nurture, a native iPhone baby-care tracker designed for households where more than one trusted caregiver needs the same up-to-date record. The beta supports shared family profiles, live Firebase synchronization, sleep and feeding logs, diaper tracking, medication and vaccination schedules, history, and daily summaries. It is free, has no ads or purchases, and is not a medical-advice app. The specific test mission takes about 10–15 minutes: Create a shared family on one iPhone. Invite a second caregiver if possible. Log one feed, diaper change, and sleep activity. Tell me where setup or synchronization felt confusing, slow, or unreliable. Requires iOS 17 or later. Feedback can be submitted through TestFlight. Founding testers who submit substantive feedback before the public App Store launch receive free lifetime access to any future Nurture subscription. Nurture is currently free and has no subscription; eligibility details are on the campaign page. TestFlight: https://testflight.apple.com/join/Mv4Wp7RB Details and founding-tester terms: https://nurture-baby-kay-2026.web.app/beta