Table 2.

Performance on individual Mobile App Rating Scale elements (highest to lowest).

Item	Mean score	Increasing physical activity (score)	Promoting healthy eating (score)	Improving mental well-being (score)	Preventing tobacco use (score)	Reducing alcohol consumption (score)
Accuracy of description (in app store)	3.88	3.82	3.77	4.17	4.06	4.09
Gestural design	3.30	3.28	3.18	3.64	3.2	3.45
Performance	3.49	3.45	3.32	3.78	3.46	4.0
Target groups	3.33	3.33	3.09	3.75	3.06	3.36
Ease of use	3.29	3.29	3.00	3.60	3.00	3.63
Navigation	3.20	3.19	3.14	3.32	3.13	3.45
Layout	3.42	3.46	3.05	3.60	3.13	3.18
Graphics	3.20	3.20	3.0	3.53	2.8	3.27
Visual appeal	2.94	2.96	2.68	3.35	2.6	2.36
Customization	2.88	2.92	3.05	2.82	2.8	1.81
Interactivity	3.23	3.23	3.36	3.28	3.53	2.54
Interest	2.30	2.29	2.0	2.67	2.06	2.63
Entertainment	2.16	2.19	2.09	2.28	1.93	1.54
Visual information	2.31	2.39	1.59	2.5	2.0	1.81
Goals	2.97	2.88	3.18	3.25	3.6	3.0
Credibility	2.11	2.03	1.91	2.64	2.46	2.63
Quality of information	2.49	2.38	1.77	3.43	2.73	3.9
Quantity of information	2.18	2.11	1.64	3.05	2.2	2.9
Overall rating	2.93	2.93	2.71	3.26	2.75	2.82