# PAH Risk Score Calculators vs CredentialRx

The clearest difference is iOS requirement: PAH Risk Score Calculators at 13.4 against CredentialRx's 15.1. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | PAH Risk Score Calculators | CredentialRx |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | — |
| Size | 28 MB | 56 MB |
| Requires iOS | **13.4** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [United Therapeutics Corporation, Inc.](https://appshunter.io/developer/715090673) | [CredentialRx Inc.](https://appshunter.io/developer/1877560994) |

## What reviewers say

### PAH Risk Score Calculators

[App page](https://appshunter.io/ios/app/pah-risk-score-calculators/id6479531184)

**Features:** macOS Compatibility

**In-app purchases:** none


### CredentialRx

[App page](https://appshunter.io/ios/app/credentialrx/id6759229544)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is PAH Risk Score Calculators free?

PAH Risk Score Calculators is free to download, with no in-app purchases.

### Is CredentialRx free?

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

### Do PAH Risk Score Calculators or CredentialRx have ads?

Neither PAH Risk Score Calculators nor CredentialRx 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.*