Preterm Growth Tracker is designed to help parents and medical professionals track the growth of preterm infants. The growth charts are based on the 2025 Fenton Third-Generation Growth Charts of Preterm Infants and the app has been developed in colaboration with the chart's author Tanis R. Fenton. Features include: * Tracking preterm infants with gestational age at birth from 20 weeks to 37 weeks * Tracking measurements up to 67 weeks * Printing chart to any iOS enabled printer * Emailing chart and data values with password protection * Emailing complete child profiles that can be imported by recipient * iPad and iPhone support