The Wonder Weeks is an app tracking development of babies from birth to 20 months. At this stage, babies make significant advances in mental development, leading to sometimes unpredictable behavior that can be exhausting for parents to keep up with. Focusing specifically on a baby’s mental development, The Wonder Weeks app provides a personalized chart to track all the dates of significant changes.

This app helps parents of newborns navigate a fast paced and often difficult period of a child’s development. As babies are unable to explicitly communicate what they’re going through at this stage of development, The Wonder Weeks app helps parents understand what is happening. It gives insights into how their child is developing and provides parents advice on how to help stimulate this growth.

The app form of the international bestselling book, The Wonder Weeks, it is backed by more than 35 years of scientific research from all around the world. The app itself is only in English. It is available on the App Store and Google Play for $2.99 USD, with in-app purchases of 10 chapters from The Wonder Weeks eBook for $0.99 USD each.