# EchoCalc vs Valve In Valve

The clearest difference is rating: Valve In Valve at 4.6 against EchoCalc's 2.3. Valve In Valve also leads on in-app purchases (none vs 3) and review sentiment (71% vs 49%). EchoCalc's advantage is iOS requirement (11.0 vs 15.1). On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. EchoCalc sells 3 one-off in-app purchases. Valve In Valve asks for nothing beyond the download.

Valve In Valve holds the better App Store score, 4.6 against 2.3. Both are backed by a comparable volume of ratings — 23 and 10 respectively. Written reviews point the same way: 49% of EchoCalc's written reviews are positive against 71% of Valve In Valve's.

EchoCalc ships an update monthly, Valve In Valve every 2 months. The most recent releases landed on August 26, 2026 and June 6, 2026 respectively.

## The numbers

| Metric | EchoCalc | Valve In Valve |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.3 (23 ratings)](https://appshunter.io/ios/app/echocalc/id468166426/reviews) | **[4.6 (10 ratings)](https://appshunter.io/ios/app/valve-in-valve/id655683780/reviews)** |
| Number of ratings | **23** | 10 |
| Positive reviews | 48.8% of reviews | **71.4% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Monthly** | Every 2 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 7 MB | 41 MB |
| Requires iOS | **11.0** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 12+ |
| Developer | [British Society of Echocardiography](https://appshunter.io/developer/468166429) | [Krutsch Associates, Inc.](https://appshunter.io/developer/1454678018) |

## What reviewers say

### EchoCalc

[App page](https://appshunter.io/ios/app/echocalc/id468166426)

Access essential echocardiography reference data for clinical practice. Includes measurements, diastolic function, prosthetic valve data, and topic guides. Supports multiple reference standards and recent guidelines.

**Highlights:** Echocardiography reference data, LV/RV size & function, Diastolic function data, Prosthetic valve reference, Topic guides with explanations, Multiple reference standards (BSE, ASE, EACVI), Access to recent guidelines

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Donate £2 to BSE | $1.99 | one-time |
| Donate £5 to BSE | $4.99 | one-time |
| Donate £10 to BSE | $9.99 | one-time |


### 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


## Frequently asked questions

### Is EchoCalc free?

EchoCalc is free to download, with in-app purchases available.

### Is Valve In Valve free?

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

### Which has better reviews, EchoCalc or Valve In Valve?

Valve In Valve is rated higher. EchoCalc averages 2.3 out of 5 from 23 ratings, while Valve In Valve averages 4.6 from 10 ratings.

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

Neither EchoCalc nor Valve In Valve shows ads.

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

EchoCalc ships an update monthly, and Valve In Valve every 2 months. Most recently, EchoCalc was updated on August 26, 2026 and Valve In Valve on June 6, 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.*