OB Calc (cloud) vs Obstetric Calculator Plus
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.
Obstetric Calculator Plus
This medical app assists healthcare professionals in calculating gestational age, fetal age, and estimated due dates for pregnant patients. It also includes BMI calculation to support patient care.
- Gestational age calculation
- Fetal age calculation
- Estimated date of delivery
- BMI calculation
- Supports LMP and ultrasound dates
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This application is designed to facilitate the calculation of gestational age for obstetricians, general practitioners, midwives, health workers and others who are involved with pregnant mothers. The calculation of fetal age is based on the date of the last menstrual period and ultrasound, and the estimation of the probable date of delivery is also included. BMI calculation is also provided to aid the care.
Screenshots
Verdict
The clearest difference is in-app purchases: Obstetric Calculator Plus at none against OB Calc (cloud)'s 2. Obstetric Calculator Plus also leads on iOS requirement (11.0 vs 18.0). OB Calc (cloud)'s advantage is update cadence (every 3 months vs every 19 months) and rating (5.0 vs 4.7). On price, ratings volume, ads and device support 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. Obstetric Calculator Plus asks for nothing beyond the download.
OB Calc (cloud) holds the better App Store score, 5.0 against 4.7. Both are backed by a comparable volume of ratings — 5 and 7 respectively.
OB Calc (cloud) ships an update every 3 months, Obstetric Calculator Plus every 19 months. The most recent releases landed on October 29, 2026 and October 30, 2026 respectively.
| Parameter | OB Calc (cloud) | Obstetric Calculator Plus |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (5 ratings) — better | 4.7 (7 ratings) |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 5 | 7 — better |
| Update frequency | Every 3 months — better | Every 19 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Requires iOS | 18.0 | 11.0 — better |
| Further details — not scored | ||
| Size | 14 MB | 34 MB |
| Age rating | 4+ | 4+ |
| Developer | Glen Botha | Mehdi Taghavi |
Customer experience
OB Calc (cloud)
Obstetric Calculator Plus
In-app purchases
OB Calc (cloud)
- Monthly Subscription$2.991 Month
- Premium (Annual)$29.991 Year
Obstetric Calculator Plus
No in-app purchases
Questions
Is OB Calc (cloud) free?
Is Obstetric Calculator Plus free?
Which has better reviews, OB Calc (cloud) or Obstetric Calculator Plus?
Do OB Calc (cloud) or Obstetric Calculator Plus have ads?
Which is updated more often, OB Calc (cloud) or Obstetric Calculator Plus?
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