The OB Wheel Pro 7 is a powerful and comprehensive tool for healthcare professionals who provide prenatal care. It is a state-of-the-art gestational age calculator that includes an ultrasound biometric calculator, a fetal weight calculator, a list of key weeks and trimesters, an age-adjusted risk table for trisomy 21 and aneuploidy, and a BMI calculator. In addition, an Apple Watch app is now included with the purchase of this app. The OB Wheel Pro 7 is designed to replace the need for multiple apps and enhance the functionality of traditional cardboard wheels.

This app accurately determines the estimated delivery date (EDD) of a pregnancy based on the first day of a woman's last menstrual period (LMP), date of conception, or from a known gestational age (GA) on a known date. It also estimates fetal weight and displays the number of days completed and remaining. Furthermore, this app enables clinicians to calculate Estimated Fetal Weight (EFW) from FL, BPD, Head Circumference (HC), and Abdominal Circumference (AC) using the most appropriate published reference formula using the maximum and most appropriate parameters.