Perfect OB Wheel 17+

Obstetrics calculator

Evan Schoenberg

Designed for iPad

    • $1.99
    • Offers In-App Purchases



Simple, fast, yet more thorough than any other pregnancy wheel available for the iPhone, Perfect OB Wheel is better than just a replacement for your trusty paper wheel.

Here's why Perfect OB Wheel is your best choice of gestational calculator:

1) Input flexibility: Start with one of:
• Last menstrual period (LMP)
• Conception date
• Estimated date of confinement/delivery (EDC)
• Ultrasound dating: Number of weeks and days gestation as of a given date ("X Weeks").

2) Input speed: Other wheels for the iPhone make you conform to them for entering your patient's information. Why not be able to choose based on how you are holding the phone and what else you are doing at the same time?
• Use the numeric entry pad (0 3 3 0 2 0 0 8) and immediately see the results, OR
• Spin the date wheel at the bottom of the screen and tap Next.

3) Thorough results: All the information you would expect from a classic wheel, plus more:
• Estimated Due Date
• LMP Date
• Conception Date
• 1st Trimester End Date
• 2nd Trimester End Date
• Gestational Age
• Conceptional Age
• Expected Fetal Length based on standard fetal growth curves
• Expected Fetal Weight based on standard fetal growth curves ("How much does my baby weigh, doctor?")

Results are relative to 'today' by default; this can be quickly changed to reflect any date by tapping the 'today' button and selecting a new date.

4) Accurate results: Perfect OB Wheel provides exact dates and accounts for all calendar variance, including leap years.

5) Persistence: Perfect OB Wheel remembers the date and date type you last used and restores them when launched to streamline your workflow.

6) Perfect OB Tracker upgrade: Available as an in-app purchase update, the Perfect OB Tracker lets you track any number of pregnancies, with at-a-glance due date and gestational age and one-tap access to all the data Perfect OB Wheel provides. A picture and text notes can be kept on each patient. Postpartum tracking is also available. Passcode locking is available for HIPAA compliance.

What’s New

Version 58

• Enhanced iCloud sync! Synchronization is now both more reliable and faster.
• Corrected a bug that could create duplicate entires.
• Fixed delivery date calculations in time zones near the international date line such as Australia and New Zealand.
•Various other fixes

Ratings and Reviews

4.9 out of 5
3.3K Ratings

3.3K Ratings

JEBe6 ,

Perfect for tool for the OB setting

As a labor & delivery nurse on a hectic floor, I've managed to find & lose our wheel multiple times during a shift or another nurse swipes it as more patients roll in. Perfect OB wheel app has been a perfect solution. No more lost wheels. Its simple & sleek flow makes it a piece of cake to use. I even use it to keep up with how far along my friends, family, and even myself are during our pregnancies. Highly recommending this app!!

Docmalan ,

rip off to force you to pay more

they make a sound as if the $1.99 you pay is going to open up the advanced options only to find out that once you pay the money and use the app that you will need to pay an additional 4.99 for the full features described. The basic features that you get for the $1.99 are free from many websites and several other free apps that actually include the ability to save your due date etc. don’t waste your money if you want the simple information provided in the $1.99 app get it free from the American College of obstetrics and gynecology app or many others. Shame on you.
I just added an edit here because I found out that the American College of obstetrics and gynecology disagrees with the dating criteria utilized here and the trimester dating is off. So not only are you paying 1.99 you’re actually getting the wrong information.
by the way I am a board-certified OB/GYN

RNobgyn30 ,

Love it!

I'm an OB nurse and I use this app all the time! It's a lot easier than searching for the wheel at the nurses station! Now I do high-risk OB in home-care setting and it's truly perfect. I've been using it for 2 1/2 years. It's designed for healthcare professionals.

App Privacy

The developer, Evan Schoenberg, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Usage Data
  • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More

More By This Developer

ICD10 Consult
Rowmote Pro for Mac
Med Mnemonics
MediMath Medical Calculator

You Might Also Like

Well Woman Visit App by NPWH
Prevent Group B Strep(GBS)
MD on Call
Guide to Clinical Midwifery
ASCCP Management Guidelines