# Obstetrics Calculator vs Radcalc Reference

The clearest difference is in-app purchases: Radcalc Reference at none against Obstetrics Calculator's 2. Radcalc Reference also leads on ads (none vs shown). Obstetrics Calculator's advantage is iOS requirement (13.0 vs 15.1). On price and device support there is nothing between them.

Both are free to download. Obstetrics Calculator sells 2 in-app purchases, starting at $1.99 per month. Radcalc Reference asks for nothing beyond the download.

## The numbers

| Metric | Obstetrics Calculator | Radcalc Reference |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/obstetrics-calculator/id1564764019/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 54.5% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | — |
| Monetization | Free with in-app purchases | — |
| Size | 90 MB | 21 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 17+ |
| Developer | [Alexander Snegirev](https://appshunter.io/developer/1564764021) | [Parikh Radiology, P.L.L.C.](https://appshunter.io/developer/6801351998) |

## What reviewers say

### Obstetrics Calculator

[App page](https://appshunter.io/ios/app/obstetrics-calculator/id1564764019)

This medical app provides a comprehensive suite of tools for calculating gestational age, estimated due dates, and various risk assessments related to pregnancy and women's health. It includes calculators for maternity leave, cervical assessments, and cancer risk estimations, designed for healthcare professionals.

**Highlights:** Gestational age and due date calculation, Multiple calculation methods (LMP, ultrasound, IVF), Maternity leave timeframe estimation, Bishop Score and TOLAC probability, Cancer risk estimations (Breast, Cervical, Ovarian), Follow-up after colposcopy

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ObCalc Pro | $1.99 | per month |
| Disable Ads | $10.99 | one-time |


### Radcalc Reference

[App page](https://appshunter.io/ios/app/radcalc-reference/id6805210963)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Obstetrics Calculator free?

Obstetrics Calculator is free to download, with in-app purchases available.

### Is Radcalc Reference free?

Radcalc Reference is free to download, with no in-app purchases.

### Do Obstetrics Calculator or Radcalc Reference have ads?

Obstetrics Calculator shows ads; Radcalc Reference does not.

---

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