# Valve In Valve vs EchoRef

The clearest difference is review sentiment: EchoRef at 100% against Valve In Valve's 71%. EchoRef also leads on ratings volume (1.4K vs 10) and rating (4.9 vs 4.6). Valve In Valve'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 4.6. That said, the two scores are not equally well evidenced: EchoRef has 1.4K ratings behind it against 10, so its average is the more settled of the two. Written reviews point the same way: 71% of Valve In Valve'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 June 6, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | Valve In Valve | EchoRef |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (10 ratings)](https://appshunter.io/ios/app/valve-in-valve/id655683780/reviews) | **[4.9 (1.4K ratings)](https://appshunter.io/ios/app/echoref/id1434016053/reviews)** |
| Number of ratings | 10 | **1.4K** |
| Positive reviews | 71.4% 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 | 41 MB | 105 MB |
| Requires iOS | **15.1** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 17+ |
| Developer | [Krutsch Associates, Inc.](https://appshunter.io/developer/1454678018) | [Rishi Kumar](https://appshunter.io/developer/1434016052) |

## What reviewers say

### Valve In Valve

[App page](https://appshunter.io/ios/app/valve-in-valve/id655683780)

This app provides clinicians with quick, clear, and concise information on heart valves and Valve in Valve therapy. It guides users through surgical and TAVR valve design, helping to plan and perform procedures by identifying surgical valves, selecting correct TAVR valve sizes, and determining optimal placement. The app offers offline access to vital information, enhancing understanding and improving patient outcomes.

**Highlights:** Heart valve design information, Valve in Valve therapy guide, Surgical and TAVR valve sizing, Image-based placement guidance, Video examples of valve placement, Offline information access, Stepped valve identification process

**Features:** macOS Compatibility

**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 Valve In Valve free?

Valve In Valve 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, Valve In Valve or EchoRef?

EchoRef is rated higher. Valve In Valve averages 4.6 out of 5 from 10 ratings, while EchoRef averages 4.9 from 1.4K ratings.

### Do Valve In Valve or EchoRef have ads?

Neither Valve In Valve nor EchoRef shows ads.

### Which is updated more often, Valve In Valve or EchoRef?

Valve In Valve ships an update every 2 months, and EchoRef every 2 months. Most recently, Valve In Valve was updated on June 6, 2026 and EchoRef on September 18, 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.*