OB Calc (cloud) vs OB Wheel
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
OB Calc (cloud)
This medical app helps obstetricians efficiently calculate key patient test date windows. It offers multiple calculation methods and allows for saving patient data and generating PDF reports. A free trial is available, followed by a subscription for full access.
- LMP, EDC, Ultrasound, CRL, and IVF calculations
- Customizable test date ranges
- Cross-device data syncing
- PDF report generation
- Save individual patient data
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While similar to a pregnancy wheel, OB Calc (cloud) is specifically designed by an obstetrician, for obstetricians. Finally obstetricians have an efficient and simple method to calculate the important test date windows for patients. CALCULATION METHODS • Last Menstrual Period (LMP) • Expected Delivery Date (EDC) • Sonogram Date and Fetal Age (Sonogram) • Crown Rump Length (CRL) • In Vitro Fertilization (IVF) Try the app for free for 7 days. A low monthly autorenewable subscription gives users access to premium features such as all calculation methods and saving of individual patient data. You can reach the developer directly at support@inpocketsolutions.com FEATURES • LMP, EDC, Ultrasound, CRL and IVF Method Calculations • Customize up to 15 tests, with date ranges • Data synced across multiple devices • Generate a PDF file • Save individual patient data CRL data reference : https://obgyn.onlinelibrary.wiley.com/doi/pdf/10.1002/uog.7654 Terms & Conditions: https://inpocketsolutions.com/terms ** Disclaimer Remember to test out the app on your specific device to ensure calculations are verified to your expectation.
OB Wheel
This app assists expectant mothers and healthcare professionals in tracking pregnancy with accurate due date calculations and weekly fetal development updates. It offers customizable features, health tips, and tools for clinicians to support patient care throughout the journey to delivery.
- Accurate due date calculation
- Weekly fetal development tracker
- Customizable reminders and tracking
- Health tips and resources
- Tools for healthcare professionals
- Symptom and feeling logging
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Promotional Text for OB Wheel App "Introducing the OB Wheel App – Your Personalized Pregnancy Journey Companion! Navigating through pregnancy just got easier and more reliable with the OB Wheel App, specially designed for expectant mothers and healthcare professionals. Say goodbye to guesswork and hello to precision with our user-friendly app that offers accurate, at-a-glance pregnancy tracking. Key Features: Accurate Due Date Calculation: Simply enter your last menstrual period, and let our app do the rest. Get precise due dates and important milestones at your fingertips. Fetal Development Tracker: Watch your baby's growth week-by-week. Learn about developmental stages, size comparisons, and exciting changes as your pregnancy progresses. Customizable Experience: Every pregnancy is unique. Customize the app to suit your journey – set reminders, track appointments, and record your feelings and symptoms. Health Tips & Resources: Stay informed with valuable insights, nutritional advice, and tips for maintaining a healthy pregnancy from conception to delivery. Professional Tools for Clinicians: A handy resource for obstetricians and midwives, offering gestational age calculations, weight and length estimations, and more to support patient care. Why Choose OB Wheel App? Simplicity and Ease of Use: Designed with you in mind, our app is intuitive and straightforward, making pregnancy tracking stress-free. Trusted and Reliable: Developed in collaboration with healthcare professionals, ensuring accuracy and up-to-date information. Stay Connected: Share milestones with loved ones and keep your healthcare team in the loop with easy sharing options. Embrace the beauty of pregnancy and enjoy peace of mind with the OB Wheel App. Whether you're a first-time mom or a seasoned pro, our app will be by your side every step of the way. Download now and start your extraordinary journey to motherhood with confidence and joy! Privacy policy: https://odindevstudio.wordpress.com/privacy-policy Terms of use and Terms of Subscription https://odindevstudio.wordpress.com/terms
Screenshots
Verdict
The clearest difference is rating: OB Calc (cloud) at 5.0 against OB Wheel's 4.3. OB Wheel's advantage is update cadence (every 4 days vs every 3 months) and monetization model (free vs free with in-app purchases). On price, ratings volume, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. OB Calc (cloud) sells 2 in-app purchases, starting at $2.99 per month and OB Wheel sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
OB Calc (cloud) holds the better App Store score, 5.0 against 4.3. Both are backed by a comparable volume of ratings — 5 and 10 respectively.
OB Calc (cloud) ships an update every 3 months, OB Wheel every 4 days. The most recent releases landed on September 21, 2026 and September 3, 2026 respectively.
| Parameter | OB Calc (cloud) | OB Wheel |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (5 ratings) — better | 4.3 (10 ratings) |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 5 | 10 — better |
| Update frequency | Every 3 months | Every 4 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, Mac — better | iPhone, iPod |
| Requires iOS | 18.0 | 14.0 — better |
| Further details — not scored | ||
| Size | 14 MB | 28 MB |
| Age rating | 4+ | 17+ |
| Developer | Glen Botha | Berkay Gurcesme |
Customer experience
OB Calc (cloud)
OB Wheel
In-app purchases
OB Calc (cloud)
- Monthly Subscription$2.991 Month
- Premium (Annual)$29.991 Year
OB Wheel
- Ob Wheel lifetime ad-free$3.99
- Unlimited Ad-free Ob wheel$9.99
Questions
Is OB Calc (cloud) free?
Is OB Wheel free?
Which has better reviews, OB Calc (cloud) or OB Wheel?
Do OB Calc (cloud) or OB Wheel have ads?
Which is updated more often, OB Calc (cloud) or OB Wheel?
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