The exception to this was features related to the Reinforcement domain, which were correlated with less usability. The presence of behavior change domain features tended to be weakly correlated with greater usability, with R 2 ranging from 0 to. None of the apps allowed for tracking of emotional factors that may be associated with diet patterns. App features varied considerably, yet all of the apps had features consistent with Beliefs about Capabilities and thus have the potential to promote self-efficacy by helping individuals track their diet and progress toward goals. Some variations in features were noted between Android and iOS versions of the same apps, mainly for MyDietCoach, which affected the SUS score. Always consult a physician or other qualified health provider regarding any questions you may have about a medical condition or health objectives.Of the apps that were reviewed, LifeSum had the highest average SUS score of 89.2, whereas MyDietCoach had the lowest SUS score of 46.7. It has been updated with new recommendations.ĭisclaimer: The information contained in this article is for educational and informational purposes only and is not intended as medical or health advice. This article was originally posted in January 2014.
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