NappyPin Breastfeeding Tracker is a free iPhone app designed specifically for breastfeeding mothers. With its clean and simple interface, it helps you keep track of your baby's feeding times and which breast to start on.

The app features a one-button start/stop timer, making it easy to use with just one hand. This is especially useful during nighttime feeds when you may be tired and need a simple way to track feeding times.

One of the standout features of NappyPin is that the timer continues running even if your device screen is off or you're using a different app. This means you don't have to worry about forgetting to stop the timer. The app also includes an auto-stop feature that will figure out when to stop the timer if you forget.

NappyPin keeps a clear journal of all your baby's feed times, allowing you to easily see how long you have fed your baby and the time between feeds. Additionally, the app provides information on how old your baby is on any given day.

Personalization is another key feature of NappyPin. You can add a picture, your baby's name, and date of birth to make the app feel more personalized and connected to your baby.

With no ads, registrations, or login screens, NappyPin ensures that all your data is kept private and local. It's just you, your baby, and this convenient little app.