Evan Schoenberg
Perfect OB Wheel is estimated to make < $5k per month from < 5k downloads / mo, tracked daily on Peekly.
How Peekly estimates these figuresSimple, 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
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Rating & reviews
4k reviews
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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.
Rating & reviews
4k reviews
Monetization
$1.99
No in-app purchases detected
Similar apps
What's new
• Fixed a crash at launch on iPads running iOS 26. • New in Settings: Back Up All Data — export a complete copy of your patient database and photos. • The app now keeps automatic local snapshots of your database for extra data safety.
How much does Perfect OB Wheel make?
Perfect OB Wheel is estimated to make < $5k per month, according to Peekly's daily tracking.
How many downloads does Perfect OB Wheel have?
Perfect OB Wheel has an estimated < 5k downloads / mo on the App Store.
Is Perfect OB Wheel free?
Perfect OB Wheel costs $1.99 on the App Store.
What is Perfect OB Wheel's rating?
Perfect OB Wheel has a rating of 4.9 out of 5, based on 4k reviews.
Publisher
Evan Schoenberg
Category
Medical
Compatibility
13.0
Size
14 MB
Rating
17+
Price
$1.99
Released
—
Last update
Aug 11, 2026
Languages
11 available
Medical
Medical
Medical
Medical
Utilities
Medical
Medical
Utilities
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