# EchoRef vs Periop Pacemaker Pro

The clearest difference is price: EchoRef at Free against Periop Pacemaker Pro's $9.99. Periop Pacemaker Pro's advantage is iOS requirement (13.0 vs 26.0). On ads, in-app purchases and device support there is nothing between them.

EchoRef is free to download; Periop Pacemaker Pro costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | EchoRef | Periop Pacemaker Pro |
| --- | --- | --- |
| Price | **Free** | $9.99 |
| 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 | — |
| Monetization | Free | — |
| Size | 105 MB | 42 MB |
| Requires iOS | 26.0 | **13.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Rishi Kumar](https://appshunter.io/developer/1434016052) | [Rhythm Management, LLC](https://appshunter.io/developer/1761518402) |

## 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


### Periop Pacemaker Pro

[App page](https://appshunter.io/ios/app/periop-pacemaker-pro/id6756777449)

**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 Periop Pacemaker Pro free?

Periop Pacemaker Pro costs $9.99, with no in-app purchases.

### Do EchoRef or Periop Pacemaker Pro have ads?

Neither EchoRef nor Periop Pacemaker Pro shows ads.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*