Table 1.

Detailed Mobile App Rating Scale (MARS) sections.

Section	Characteristics
Engagement	Entertainment, interest, customization, interactivity, and fit to target group
Functionality	Performance, ease of use, navigation, and gestural design
Aesthetics	Layout, graphics, and visual appeal
Information	Accuracy of app description, goals, quality of information, quantity of information, visual information, credibility, and evidence base
Subjective app quality scores	Recommendation to other individuals, app star ratings, usage, and if users are willing to pay or not for the product