Publications by authors named "Marisa A Ellsworth"
Background: Although the Health & Fitness category of the Apple App Store features hundreds of calorie counting apps, the extent to which popular calorie counting apps include health behavior theory is unknown.
Objective: This study evaluates the presence of health behavior theory in calorie counting apps.
Methods: Data for this study came from an extensive content analysis of the 10 most popular calorie counting apps in the Health & Fitness category of the Apple App Store.