Report updated Apr 1, 2026
Perfect OB Wheel
v58Healthcare providers (OB/GYNs, midwives) and medical professionals who need a fast, accurate, and portable alternative to traditional paper pregnancy wheels.
What Is Perfect OB Wheel?
Launched Oct 16, 2008
Updated Aug 2025
What users think iIndependent intel reports to help builders create better apps or enhance existing ones. Still in beta, accuracy and relevancy get better every day. For informational purposes only.
What does it look like?
What are the key features?
Calculates gestational age and due dates using LMP, conception date, ultrasound dating, and IVF methods.
Provides expected fetal length and weight based on standard fetal growth curves.
Remembers the last used date and calculation type to streamline repeat usage for clinicians.
Optional in-app purchase for tracking multiple pregnancies with notes, photos, and passcode locking.
Includes additional medical modules like hCG doubling time, BMI weight gain comparison, and Bishop scoring.
What do users think? iIndependent intel reports to help builders create better apps or enhance existing ones. Still in beta, accuracy and relevancy get better every day. For informational purposes only.
“Recent user voice shows a thrilled sentiment. Users appreciate clinical utility and ease of use, but report app stability and crashes and monetization and value.”
What Users Love
I am a nurse in a prenatal clinic and use this multiple times a day.
Couldn’t do my job without this app.
Simple, accurate, intuitive to use.
Its simple & sleek flow makes it a piece of cake to use.
Pain Points
When I tape the app it opens then immediately closes.
Did last update and now it won't open at all!!!!
rip off to force you to pay more... once you pay the money... you will need to pay an additional 4.99 for the full features
The basic features that you get for the $1.99 are free from many websites
High confidence · 60 reviews available
How is it ranked?
| Chart | Rank | Change |
|---|---|---|
| Paid | #32 | ▼11 |
What are the pros and cons?
Pros
- High clinical trust and strong user loyalty among medical professionals.
- Deep feature set including advanced fetal growth curves and clinical modules.
- Proven track record of longevity and stability in the App Store since 2008.
Cons
- Persistent technical issues regarding app crashes after updates.
- Limited customization for clinical variables like cycle length.
- Lack of social media presence or community engagement channels.
What is the market outlook?
Growth Opportunities
- Capitalize on the lack of advanced customization by introducing user-defined cycle lengths.
- Expand into the Android market to capture a broader global user base.
- Improve the IAP value proposition to reduce negative sentiment regarding pricing.
Market Threats
- Free web-based calculators and hospital-provided EMR tools.
- Increasing competition from free, ad-supported medical apps.
- Potential regulatory shifts regarding HIPAA compliance.
What are the key takeaways?
Perfect OB Wheel is a thrilling medical app that is free with in-app purchases. With a 4.9/5 rating from 3.5K reviews, it thrills its users from users. Users particularly appreciate clinical utility, though app stability and crashes remains a common concern.
Best for: Healthcare providers (OB/GYNs, midwives) and medical professionals who need a fast, accurate, and portable alternative to traditional paper pregnancy wheels.
How much does it cost?
Model: freemium
The app uses a low-barrier entry strategy with a paid professional upgrade, targeting both casual users and healthcare providers who require data privacy and patient management.
iOS Version
58
Android Version
2.1
Release Date
Oct 16, 2008
iOS Price
$1.99
Android Price
Free
Developer
Evan Schoenberg