Contraction Timer Counter 9m is the most downloaded app in the world designed to track contractions. Developed by Aleksei Neiman, this free app is available on the iPhone platform and falls under the Education & Reference category with a subcategory of Medicine.

This app is perfect for expecting mothers who want to track their contractions and determine when it's time to go to the hospital. The app is straightforward and easy to use. By tapping a single button at the start and end of each contraction, the Contraction Timer analyzes the duration and frequency of contractions and will notify you when it's time to go to the hospital. It even tells you what stage of labor you are in if you plan on having a home birth.