Clinical Research Directory

Inclusion Criteria: For this study, eligible caregiver/infant dyads will be those with: 1. an English- or Spanish-speaking parent/legal guardian, 2. infant born in the newborn nursery with plans to have care in the local clinic OR presenting in that clinic for the first newborn visit (1-21 days of life), 3. attendance at first newborn clinic visit 4. no plans to leave the clinic within 2 years 5. Completion of baseline data collection (survey data, child weight and length measures prior to randomization). 6. Own a smartphone with access to data services Exclusion Criteria: Infant exclusion criteria: 1. born prior to 34 weeks gestation or birth weight \<1500 grams; weight \<3rd %tile at enrollment (World Health Organization growth curves); or 2. any chronic medical problem that may affect weight gain (e.g., metabolic disease, uncorrected congenital heart disease, renal disease, high-calorie formula; cleft palate; Down syndrome). Caregiver exclusion criteria include: 1. \<18 years old; 2. serious mental or neurologic illness that impairs ability to consent/participate; 3. poor visual acuity (corrected vision worse than 20/50 with Rosenbaum Screener). 4. biological mother is HIV-positive