"Gestational Age is simply the fastest application for this purpose. With only SIX TOUCHES the result appears. The application is very flexible and is perfect for anyone who needs to get the data quickly! Simplicity, speed and convenience were the principles that guided the creation of this application. Enjoy! Calculate the current gestational age from the date of the last menstrual period or from the fetal ultrasound biometry. Furthermore the application displays the expected due date."