# OB App Suite vs OB Calc (cloud)

The clearest difference is review sentiment: OB App Suite at 63% against OB Calc (cloud)'s 0%. OB App Suite also leads on in-app purchases (none vs 2) and update cadence (every 11 days vs every 3 months). OB Calc (cloud)'s advantage is rating (5.0 vs 3.8). On price, ratings volume, ads and device support there is nothing between them.

Both are free to download. OB Calc (cloud) sells 2 in-app purchases, starting at $2.99 per month. OB App Suite asks for nothing beyond the download.

OB Calc (cloud) holds the better App Store score, 5.0 against 3.8. Both are backed by a comparable volume of ratings — 13 and 5 respectively. Written reviews complicate that: 63% of OB App Suite's written reviews are positive against 0% of OB Calc (cloud)'s, so the app with the better star average is not the one people write more warmly about.

OB App Suite ships an update every 11 days, OB Calc (cloud) every 3 months. Both last shipped on October 24, 2026.

## The numbers

| Metric | OB App Suite | OB Calc (cloud) |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.8 (13 ratings)](https://appshunter.io/ios/app/ob-app-suite/id933612629/reviews) | **[5.0 (5 ratings)](https://appshunter.io/ios/app/ob-calc-cloud/id1495610465/reviews)** |
| Number of ratings | **13** | 5 |
| Positive reviews | **62.5% of reviews** | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 11 days** | Every 3 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 23 MB | 14 MB |
| Requires iOS | **10.0** | 18.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 17+ | 4+ |
| Developer | [Andrew Yu](https://appshunter.io/developer/328693314) | [Glen Botha](https://appshunter.io/developer/943181947) |

## What reviewers say

### OB App Suite

[App page](https://appshunter.io/ios/app/ob-app-suite/id933612629)

This app provides a suite of OB/GYN specific medical calculators for quick and easy use. It includes tools for calculating due dates, predicting VBAC success, and assessing pre-eclampsia criteria, along with information on interpreting results.

**Highlights:** OB Wheel for LMP, EDD, and EGA, Due Date by Sonogram, IVF Wheel for due date calculation, VBAC Success prediction, GBS Algorithm for antibiotic indication, Pre-Eclampsia Protein/Creatine Ratio assessment, APGAR, BMI, BSA, and Urine Output calculators

**Features:** macOS Compatibility

**In-app purchases:** none


### OB Calc (cloud)

[App page](https://appshunter.io/ios/app/ob-calc-cloud/id1495610465)

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.

**Highlights:** LMP, EDC, Ultrasound, CRL, and IVF calculations, Customizable test date ranges, Cross-device data syncing, PDF report generation, Save individual patient data

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $2.99 | per month |
| Premium (Annual) | $29.99 | per year |


## Frequently asked questions

### Is OB App Suite free?

OB App Suite is free to download, with no in-app purchases.

### Is OB Calc (cloud) free?

OB Calc (cloud) is free to download, with in-app purchases available.

### Which has better reviews, OB App Suite or OB Calc (cloud)?

OB Calc (cloud) is rated higher. OB App Suite averages 3.8 out of 5 from 13 ratings, while OB Calc (cloud) averages 5.0 from 5 ratings.

### Do OB App Suite or OB Calc (cloud) have ads?

Neither OB App Suite nor OB Calc (cloud) shows ads.

### Which is updated more often, OB App Suite or OB Calc (cloud)?

OB App Suite ships an update every 11 days, and OB Calc (cloud) every 3 months. Most recently, OB App Suite was updated on October 24, 2026 and OB Calc (cloud) on October 24, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*