Most baby apps try to track everything. Napple does one job: know when the next nap or bedtime is due. It learns your baby’s rhythm, not a generic chart, and shows the next sleep window on a clock. Log in one tap, hold to backdate, and see it on the Lock Screen. Both parents share one history. Logging and family sync stay free after a 14-day full preview. Pro unlocks predictions, reminders, and Live Activity. No sleep-training. No medical claims. Just less guessing.