# Impella App vs EchoRef

The clearest difference is review sentiment: EchoRef at 100% against Impella App's 33%. EchoRef also leads on rating (4.9 vs 3.8) and ratings volume (1.4K vs 11). Impella App's advantage is iOS requirement (15.1 vs 26.0). On price, update cadence, ads and in-app purchases there is nothing between them.

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

EchoRef holds the better App Store score, 4.9 against 3.8. That said, the two scores are not equally well evidenced: EchoRef has 1.4K ratings behind it against 11, so its average is the more settled of the two. Written reviews point the same way: 33% of Impella App's written reviews are positive against 100% of EchoRef's.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on November 1, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | Impella App | EchoRef |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.8 (11 ratings)](https://appshunter.io/ios/app/impella-app/id991345042/reviews) | **[4.9 (1.4K ratings)](https://appshunter.io/ios/app/echoref/id1434016053/reviews)** |
| Number of ratings | 11 | **1.4K** |
| Positive reviews | 33.3% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Free | Free |
| Size | 29 MB | 104 MB |
| Requires iOS | **15.1** | 26.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 17+ | 17+ |
| Developer | [Abiomed, Inc.](https://appshunter.io/developer/952807334) | [Rishi Kumar](https://appshunter.io/developer/1434016052) |

## What reviewers say

### Impella App

[App page](https://appshunter.io/ios/app/impella-app/id991345042)

This app offers healthcare professionals immediate access to essential resources for Impella heart pump procedures. It provides step-by-step videos, calculators, and instructions for use, ensuring critical information is available at the point of care, even offline.

**Highlights:** Step-by-step setup and insertion videos, Personalized experience by role, Procedure calculators (heparin rate, CPO, PAPi, AKI), Interactive patient selection checklist, Impella instructions for use (IFUs), 24/7 Clinical Support Center access

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Impella App free?

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

### Is EchoRef free?

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

### Which has better reviews, Impella App or EchoRef?

EchoRef is rated higher. Impella App averages 3.8 out of 5 from 11 ratings, while EchoRef averages 4.9 from 1.4K ratings.

### Do Impella App or EchoRef have ads?

Neither Impella App nor EchoRef shows ads.

### Which is updated more often, Impella App or EchoRef?

Impella App ships an update every 2 months, and EchoRef every 2 months. Most recently, Impella App was updated on November 1, 2026 and EchoRef on November 2, 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.*