Memori is a baby tracker and family album for iPhone, iPad, and Apple Watch. Log feeds, sleep, diapers, growth, medication, and milestones. The free tier includes manual logging without ads. Paid plans add on-device predictions for the next feed or nap, a Morning Brief, and voice logging. Cry detection and diaper-photo analysis run on the iPhone. Invite family to a private group, view records on the web, or import logs from another app. It is not a medical device. Requires iOS 26.2 or later.
Hunted this one after trying a few baby trackers that all wanted a subscription just for logging. the on-device cry detection is the part that got me - no cloud audio of your kid. free tier is genuinely usable without ads, which is rare in this category!