The download button opens the iTunes App Store, where you
may continue the download process. You must have iTunes installed with an
active iTunes account in order to download and install the software. This
download may not be available in some countries.
From Cars-N-Kids, LLC:
First Years iAlert: The first phone app to communicate with your car seat!The iAlert Car Seat Monitor application provides information and safety alerts when using The First Years True Fit iAlert Convertible Car Seat (C685). Features: Helps you achieve the correct rear facing angle installation Reminds you to buckle up your child Sends an alert if your child moves out of their seat while driving Constantly monitors the back seat temperature Sends an alert if your child is left unattended in their seat Option to send text and email alerts to emergency contacts Can even be used to monitor multiple iAlert car seatsPlease note: This app requires The First Years True Fit Convertible Car Seat in order to function. The First Years True Fit is for use with children 5-35 lbs rear facing; 23-65 lbs forward facing.