Milestones matter! Track your child’s milestones from age 2 months to 5 years with CDC’s easy-to-use illustrated checklists; get tips from CDC for encouraging your child’s development; and find out what to do if you are ever concerned about how your child is developing. Photos and videos in this app illustrate each milestone and make tracking them for your child easy and fun! Download it free today on iOS and Android devices in English and Spanish!