Table 5.

The user version of the Mobile App Rating Scale (uMARS) scores of the included apps.

App name		uMARS subscale score					Overall score
		Engagement	Functionality	Aesthetics	Information quality
iRheuma
	iOS	3.8	4.3	4.3	4.5	4.2
	Android	3.8	4.3	4.3	4.5	4.2
Wen Wen Feng Shi
	iOS	2.6	3.5	3.7	3.5	3.3
	Android	2.6	3.5	3.7	3.5	3.3
Feng Shi Mian Yi Kou Dai Shu
	iOS	2.4	3.3	3.0	2.8	2.9
Lei Feng Shi Hu Zhu
	Android	2.2	3.0	2.7	2.8	2.7
Jian Feng Yuan
	Android	2.8	3.0	3.7	3.3	3.2