Table 2.

Interrater reliability scores when reviewers used the Mobile App Rating Scale (MARS).

Category	Reviewers
	Clinical researchers	Engineers	Health care professionals	End users	Aggregate
Engagement	0.18	0.50	0.53	0.41	0.43
Functionality	0.24	0.52	0.40	–0.38	0.19
Aesthetics	0.42	0.26	0.23	–0.14	0.17
Information	0.03	0.08	0.05	–0.09	0.06
Subjective	0.57	0.41	–0.08	0.54	0.43
Total	0.27	0.41	0.25	0.19	0.29