. 2018 Mar 21;6(3):e53. doi: 10.2196/mhealth.9069
©Paulina Bondaronek, Ghadah Alkhaldi, April Slee, Fiona L Hamilton, Elizabeth Murray. Originally published in JMIR Mhealth and Uhealth (http://mhealth.jmir.org), 21.03.2018.
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Figure 4.
Distribution of user ratings in iTunes and Google Play.