# EchoCalc vs Streamline Trial

The clearest difference is in-app purchases: Streamline Trial at none against EchoCalc's 3. Streamline Trial also leads on update cadence (every 8 days vs monthly). EchoCalc's advantage is iOS requirement (11.0 vs 15.6). On price, ads and device support there is nothing between them.

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

EchoCalc ships an update monthly, Streamline Trial every 8 days. The most recent releases landed on October 14, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | EchoCalc | Streamline Trial |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.3 (23 ratings)](https://appshunter.io/ios/app/echocalc/id468166426/reviews)** | — |
| Number of ratings | **23** | — |
| Positive reviews | 48.8% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | **Every 8 days** |
| Monetization | Free with in-app purchases | — |
| Size | 7 MB | 33 MB |
| Requires iOS | **11.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [British Society of Echocardiography](https://appshunter.io/developer/468166429) | [Centro Nacional de Investigaciones Cardiovasculares Carlos III (F.S.P.)](https://appshunter.io/developer/1463033570) |

## 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 |


### Streamline Trial

[App page](https://appshunter.io/ios/app/streamline-trial/id6757601858)

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

**In-app purchases:** none


## Frequently asked questions

### Is EchoCalc free?

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

### Is Streamline Trial free?

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

### Do EchoCalc or Streamline Trial have ads?

Neither EchoCalc nor Streamline Trial shows ads.

### Which is updated more often, EchoCalc or Streamline Trial?

EchoCalc ships an update monthly, and Streamline Trial every 8 days. Most recently, EchoCalc was updated on October 14, 2026 and Streamline Trial on October 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.*