# 3D CTO Wiring vs PH

The clearest difference is iOS requirement: 3D CTO Wiring at 13.0 against PH's 15.0. 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 | 3D CTO Wiring | PH |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/ph-chd-learn/id6764614338/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | — |
| Monetization | — | Free |
| Size | 27 MB | 16 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Pravin Goel](https://appshunter.io/developer/1771857707) | [Corey Chartan](https://appshunter.io/developer/1434549774) |

## What reviewers say

### 3D CTO Wiring

[App page](https://appshunter.io/ios/app/3d-cto-wiring/id6736403531)

**Features:** macOS Compatibility

**In-app purchases:** none


### PH

[App page](https://appshunter.io/ios/app/ph-chd-learn/id6764614338)

This app offers interactive, case-based modules for medical professionals to learn about congenital heart disease and pulmonary hypertension. It features detailed diagrams and practical clinical guidance to aid in diagnosis and management.

**Highlights:** Interactive case-based modules, Congenital heart disease coverage, Pulmonary hypertension evaluation, Surgical timing guidance, Clinical pearls for diagnosis, Detailed lesion-specific diagrams

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

**In-app purchases:** none


## Frequently asked questions

### Is 3D CTO Wiring free?

3D CTO Wiring is free to download, with no in-app purchases.

### Is PH free?

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

### Do 3D CTO Wiring or PH have ads?

Neither 3D CTO Wiring nor PH 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.*