Published by Joshua Steinberg, MD on 2018-02-07
What is OB Wheels? OB Wheels is a pregnancy care app that combines three essential features for clinicians. It includes a calendar calculator to determine EDD (EDC) from LMP or sonogram report, a cardboard OB wheel that can be rotated, pinched, and zoomed, and the most recent committee opinion scheme from ACOG on reconciling due dates from LMP and sonograms.
1. To my knowledge, the scheme is authority-based and no better or worse than other schemes, but my practice and my learners need a single clear scheme, so this app includes one for easy reference.
2. Does the world need another OB-wheel-due-date-calculator app? You bet! OB Wheels combines three things that clinicians need to derive all the dates necessary in pregnancy care, and no other app has this combination.
3. Finally, the app notes the most recent committee opinion scheme from ACOG on how one might reconcile due dates from LMP and sonograms to arrive at a single final EDD.
4. Then for all of you who miss your cardboard OB wheel, the app contains one which you can rotate, pinch and zoom, and generally play with just like a regular cardboard wheel.
5. But the wheel works and it is accurate, especially so because you can zoom in to be sure where the little date hash lines lie.
6. Because the calculator works off the real calendar, it is accurate for leap years too.
7. It contains a calendar calculator to determine EDD (EDC) from LMP or from a sonogram report.
8. The calendar calculator also provides gestational age (EGA) as of any date for a given EDD or LMP.
9. It's a little tricky to learn how to plant two fingers and rotate them rather than pinch-and-zoom to get rotation versus resizing.
10. As an educator and clinician myself, I am grateful for feedback.
11. Email me via the contact email at my website.
12. Liked OB Wheels? here are 5 Medical apps like GoodRx: Prescription Saver; Teladoc | Telehealth & Therapy; Leafly: Find Weed Near You; Weedmaps: Cannabis, Weed & CBD; Baby Tracker - Newborn Log;
Or follow the guide below to use on PC:
Select Windows version:
Install OB Wheels app on your Windows in 4 steps below:
Download a Compatible APK for PC
| Download | Developer | Rating | Current version |
|---|---|---|---|
| Get APK for PC → | Joshua Steinberg, MD | 2.27 | 1.2 |
Get OB Wheels on Apple macOS
| Download | Developer | Reviews | Rating |
|---|---|---|---|
| Get Free on Mac | Joshua Steinberg, MD | 15 | 2.27 |
Download on Android: Download Android
- Calendar calculator to determine EDD (EDC) from LMP or sonogram report
- Provides gestational age (EGA) as of any date for a given EDD or LMP
- Accurate for leap years
- Cardboard OB wheel that can be rotated, pinched, and zoomed
- Accurate date hash lines when zoomed in
- Includes the most recent committee opinion scheme from ACOG on reconciling due dates from LMP and sonograms
- Easy reference for clinicians and educators
- Feedback can be sent via the contact email on the website.
- The Calendar Based Calculator is digital and easy to use.
- The app is free of cost.
- The app provides information on when to use ultrasound vs LMP.
- The app provides an OB Wheel function for those who prefer it.
- The Traditional OB Wheel is tricky to use and takes practice to get the hang of it.
- The app is not compatible with iPad, making it difficult to use the Traditional OB Wheel on smaller screens.
- Some users find the OB Wheel function clunky and pointless.
- The OB Wheel requires a lot of screen manipulation, making it cumbersome to use.
- The app is not intuitive and some users prefer a cardboard wheel over it.
It IS tricky to use, but it DOES work
Works great
Cumbersome
Cumbersome
PC Apps 
