. 2020 Apr 17;8(4):e14726. doi: 10.2196/14726
©Gilly A A Hendrie, M Sazzad Hussain, Emily Brindal, Genevieve James-Martin, Gemma Williams, Anna Crook. Originally published in JMIR mHealth and uHealth (http://mhealth.jmir.org), 17.04.2020.
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Figure 6.
Percentage of active users using app features throughout the 21-day challenge period (n=4683).