# Device Guide vs Congenital Calculator

The clearest difference is iOS requirement: Device Guide at 13.0 against Congenital Calculator's 15.1. On price, ads, in-app purchases and monetization model 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 | Device Guide | Congenital Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/congenital-calculator/id6770282687/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | 57.1% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | — |
| Monetization | Free | Free |
| Size | 42 MB | 27 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Fyra LLC](https://appshunter.io/developer/1232329461) | [Subhrajit Lahiri](https://appshunter.io/developer/1896730286) |

## What reviewers say

### Device Guide

[App page](https://appshunter.io/ios/app/device-guide/id514788717)

This medical app offers a comprehensive directory of vascular and coronary interventional devices for US and CE Mark markets. Easily search product specifications, company details, and web resources in a centralized tool. Regular updates ensure access to the latest product information.

**Highlights:** Vascular and coronary interventional device listing, US and CE Mark market coverage, Searchable product sizes and configurations, Company information and web resources, Regular product updates

**Features:** macOS Compatibility

**In-app purchases:** none


### Congenital Calculator

[App page](https://appshunter.io/ios/app/congenital-calculator/id6770282687)

This professional cardiac hemodynamic calculator assists pediatric cardiologists and congenital heart disease specialists. It computes pulmonary and systemic blood flow, vascular resistance, and shunt fractions using the Fick principle during cardiac catheterization. The app generates comprehensive PDF reports for patient data and results.

**Highlights:** Pulmonary and systemic blood flow calculation, Vascular resistance calculation, Shunt fraction calculation, Mixed venous saturation, VO₂ estimation, Shunt detection warning, PDF report generation

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

**In-app purchases:** none


## Frequently asked questions

### Is Device Guide free?

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

### Is Congenital Calculator free?

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

### Do Device Guide or Congenital Calculator have ads?

Neither Device Guide nor Congenital Calculator 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.*