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Last updated on: 2026-06-27
App Store Apps > Medical > Perfect OB Wheel
Perfect OB Wheel icon

Perfect OB Wheel

58
Evan Schoenberg
4.92
3,551 reviews
$1.99

Not recently updated — last update was on 2021-10-16. This app may no longer be actively maintained.
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About Perfect OB Wheel

Perfect OB Wheel is an overall app developed by Evan Schoenberg.

Download Statistics

User Ratings

Perfect OB Wheel is rated 4.92 out of 5 stars. The rating is based on 3.6 thousand ratings.

App Information

Perfect OB Wheel costs $1.99 to download. The APK download size is 9.67 MB. The latest version available is 58. The last update was on October 16, 2021.

Technical Requirements

The app has a content rating of High Maturity. The app has been available on Google Play before 2010.

Description
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.
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More data about Perfect OB Wheel

Price $1.99
Rating 4.92 based on 3.6 thousand ratings
Ranking Highly ranked
Version 58
App download size 9.67 MB
Maturity High Maturity

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Changelog of Perfect OB Wheel

No changelog data

Developer information for Evan Schoenberg

Evan Schoenberg

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App Store Rankings for Perfect OB Wheel

Top rankings

Rank Country Category List
31 United States Medical Top Paid
28 Canada Medical Top Paid
30 Portugal Medical Top Paid
32 Russia Medical Top Paid
38 Indonesia Medical Top Paid
40 Brazil Medical Top Paid
40 Italy Medical Top Paid
42 Poland Medical Top Paid
42 Turkey Medical Top Paid
43 Saudi Arabia Medical Top Paid

Ranking history in United States

Ranking history
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Technologies used by Perfect OB Wheel

ACOG icon ACOG
MD on Call icon MD on Call
ASCCP Management Guidelines icon ASCCP Management Guidelines
Contraception icon Contraception
Contraception Point-of-Care icon Contraception Point-of-Care
Prevent Group B Strep(GBS) icon Prevent Group B Strep(GBS)
Lanthier icon Lanthier
myTIPreport icon myTIPreport

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