Table 1. The search strategy summary.

Items	Specification
Date of search	11/17/2022
Databases and other sources searched	PubMed, Embase, CINAHL
Search terms used	Mobile Applications OR Smartphone
	mobile AND (app OR apps OR application)
	Smart phone(s)
	iPhone(s)
	Intensive Care Units, Neonatal OR Neonatology OR neonatal intensive care unit OR NICU OR neonatolog*
Timeframe	November 2012 to November 2022
Inclusion and exclusion criteria	See Table 2
Selection process	Authors LK and IS performed comprehensive database searches together on 11/17/2022. All authors agreed upon inclusion and exclusion criteria. Author IS conducted the Narrative Review through Covidence