# US Fetal vs OB Calc (cloud)

The clearest difference is price: OB Calc (cloud) at Free against US Fetal's $10.99. US Fetal's advantage is in-app purchases (none vs 2) and iOS requirement (9.0 vs 18.0). On ads and device support there is nothing between them.

OB Calc (cloud) is free to download; US Fetal costs $10.99 up front. OB Calc (cloud) sells 2 in-app purchases, starting at $2.99 per month. US Fetal asks for nothing beyond the download.

## The numbers

| Metric | US Fetal | OB Calc (cloud) |
| --- | --- | --- |
| Price | $10.99 | **Free** |
| Rating | — | **[5.0 (5 ratings)](https://appshunter.io/ios/app/ob-calc-cloud/id1495610465/reviews)** |
| Number of ratings | — | **5** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 3 months |
| Monetization | — | Free with in-app purchases |
| Size | 43 MB | 14 MB |
| Requires iOS | **9.0** | 18.0 |
| Devices | iPhone, iPod | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Jose Rogelio Cruz Martinez](https://appshunter.io/developer/1456825256) | [Glen Botha](https://appshunter.io/developer/943181947) |

## What reviewers say

### US Fetal

[App page](https://appshunter.io/ios/app/us-fetal/id1456825257)

**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 US Fetal free?

US Fetal costs $10.99, with no in-app purchases.

### Is OB Calc (cloud) free?

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

### Do US Fetal or OB Calc (cloud) have ads?

Neither US Fetal nor OB Calc (cloud) shows ads.

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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.*