# EchoRef vs Cardiotox

The clearest difference is update cadence: EchoRef at every 2 months against Cardiotox's every 35 months. Cardiotox's advantage is iOS requirement (16.4 vs 26.0). 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.

EchoRef ships an update every 2 months, Cardiotox every 35 months. The most recent releases landed on October 15, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | EchoRef | Cardiotox |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (1.4K ratings)](https://appshunter.io/ios/app/echoref/id1434016053/reviews)** | — |
| Number of ratings | **1.4K** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 35 months |
| Monetization | Free | — |
| Size | 105 MB | 54 MB |
| Requires iOS | 26.0 | **16.4** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 17+ | 17+ |
| Developer | [Rishi Kumar](https://appshunter.io/developer/1434016052) | [Philippe Camus](https://appshunter.io/developer/1438857331) |

## What reviewers say

### EchoRef

[App page](https://appshunter.io/ios/app/echoref/id1434016053)

This educational reference app provides comprehensive information on point-of-care ultrasound (POCUS), echocardiography, and cardiac measurements. It includes lessons on interventional procedures and hemodynamic calculations for medical professionals.

**Highlights:** Point-of-care ultrasound (POCUS), Transthoracic echocardiography (TTE), Transesophageal echocardiography (TEE), Cardiac dimensions and valve measurements, Hemodynamic and ultrasound calculations, Interventional procedure lessons

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

**In-app purchases:** none


### Cardiotox

[App page](https://appshunter.io/ios/app/cardiotox/id1541308344)

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

**In-app purchases:** none


## Frequently asked questions

### Is EchoRef free?

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

### Is Cardiotox free?

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

### Do EchoRef or Cardiotox have ads?

Neither EchoRef nor Cardiotox shows ads.

### Which is updated more often, EchoRef or Cardiotox?

EchoRef ships an update every 2 months, and Cardiotox every 35 months. Most recently, EchoRef was updated on October 15, 2026 and Cardiotox on October 10, 2026.

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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.*