A collections of OB/GYN specific calculators all in one place. Easy and quick to use. Includes information about the tests and how to interpret results.

Currently Tools:
• OB Wheel
-Same features as preg wheel app. (See below)
• Due Date by Sonogram
• IVF Wheel
-Calculate due date based on IUI date or embryo transfer date.
• VBAC Success
-Predicts success of VBAC based on patient history.
• GBS Algorithm
-Determines if antibiotics are indicated and which one to administer
• Bishop Score
• Pre-Eclampsia Protein/Creatine Ratio
-Determines if patient meets pre-eclampsia criteria
• Urine Output

Preg Wheel Features
1) Quickly input various dates with the date wheel:
• Last menstrual period (LMP)
• Estimated date of delivery (EDD)
• Estimated Gestational Age (EGA)

2) Accurate results: Preg Wheel provides exact dates and accounts for all calendar variance, including leap years.

3) Persistence: Preg Wheel can save the date and date type and restore them when launched to streamline your workflow.

4) Now with even more relevant dates for the entire pregnancy. Know in advance when specific screening tests need to be performed.
• 1st Trimesters US
• Quad Screen
• Amino
• Anatomy US
• Anti-D Prophylaxis
• GBS Screen
• Elective Delivery

What’s New

Version 1.7

This app has been updated by Apple to use the latest Apple signing certificate.

Fixed some bugs with date entry using keyboard

Ratings and Reviews

3.8 out of 5
12 Ratings

12 Ratings

Poloplayer0811 ,

App crashes

After update on my phone .... the app crashes when i change to different from last menstrual period to x weeks
Tried reseting phone and deleting app and reinstalling it .... and issue still there

Iamdocd99 ,

Good app

Easy to use and covers all obstetric/gynae calculations ! A must have !

aedrich ,

Due date calculator doesn’t work

Ever since the update the app stops working when you click on the due date calculator. Very frustrating when you try to use this for work.

App Privacy

The developer, Andrew Yu, has not provided details about its privacy practices and handling of data to Apple.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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