Table 2.

Excerpt of decisions for rejecting or accepting user preferences.

Main theme	User preference	Accept /reject	Reason
App features
	Every family is different so they need to be able to choose their own goals	Accept	(v) Supported by literature (+)a
	Recipe output of household ingredients	Reject	(i) Aligned with target behavior (-)b; (ii) already apps and websites that provide this (-); (iii) not within budget (-)
Usability
	Needs to be minimal data input	Accept	(iv) Aligned with recommended usability goals (+); (v) parents lack of time was identified as an important barrier to make changes (+)
Aesthetics
	Visuals of food in the app	Accept	(iv) Aligned with recommended user experience goals (+)

^a(+) Aligned with criterion

^b(-) Not aligned with criterion