Relay
The job: During the newborn-shift period, both parents know whose turn is next and how long the other one actually slept.
My wife and I were trading nightshifts and kept losing the thread. Notes, a shared spreadsheet, a baby-tracker app, nothing fit. So I built Relay during nap windows. SwiftUI, SwiftData, no backend. Single-player v1 on my phone; a CloudKit-shared v2 for both of us is next. Live on the App Store.