Human milk is the ideal source of nutrition for most infants, yet rates of exclusive breastfeeding and breastfeeding to 12 months remain suboptimal in the US. Mobile health technologies can address some barriers to breastfeeding by offering tracking features, data on user behavior, and information. This presentation will review the use of mobile applications (“apps”) for tracking infant feeding. Characteristics of app users, app features most used and desired by postpartum mothers, and app features most frequently available within these apps will be presented.