International and national infant feeding guidelines recommend that "infants are exclusively breastfed until around 6 months of age when solid foods are introduced, and that breastfeeding is continued until 12 months of age and beyond, as long as the mother and child desire" (National Health and Medical Research Council, 2012, p. 12; World Health Organization, 2016). However, many women stop breastfeeding earlier than planned for many reasons, including common breastfeeding problems, maternal or infant illness, and poor community acceptability (Odom, Li, Scanlon, Perrine, & Grummer-Strawn, 2013; Rollins et al., 2016). Sources of support and information for breastfeeding women have traditionally been family members, health professionals, books, and magazines (Newby, Brodribb, Ware, & Davies, 2015; Rollins et al., 2016). The Internet has become a source of information, and there is some evidence that Internet-based support can improve exclusive breastfeeding rates (Giglia, Cox, Zhao, & Binns, 2015). More recently, the explosion of mobile telephone use has allowed this device to become a source of health promotion and selfmanagement of disease (García-Gómez et al., 2014; Mendiola, Kalnicki, & Lindenauer, 2015). Smartphone applications, commonly referred to as apps, are software that 794181J HLXXX10.