# EchoCalc vs TRI

The clearest difference is rating: TRI at 5.0 against EchoCalc's 2.3. TRI also leads on in-app purchases (none vs 3) and update cadence (daily vs monthly). EchoCalc's advantage is ratings volume (23 vs 1). On price, ads and device support there is nothing between them.

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

TRI holds the better App Store score, 5.0 against 2.3. That said, the two scores are not equally well evidenced: EchoCalc has 23 ratings behind it against 1, so its average is the more settled of the two.

EchoCalc ships an update monthly, TRI daily. The most recent releases landed on November 6, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | EchoCalc | TRI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.3 (23 ratings)](https://appshunter.io/ios/app/echocalc/id468166426/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/tri-score/id6504230712/reviews)** |
| Number of ratings | **23** | 1 |
| Positive reviews | 48.8% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | **Daily** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 7 MB | 37 MB |
| Requires iOS | 11.0 | **8.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [British Society of Echocardiography](https://appshunter.io/developer/468166429) | [ICP CONSEIL](https://appshunter.io/developer/1751448903) |

## 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 |


### TRI

[App page](https://appshunter.io/ios/app/tri-score/id6504230712)

This medical app provides a dedicated risk-score model to predict outcomes for patients undergoing isolated tricuspid valve surgery. It utilizes pre-operative clinical, biological, and echocardiographic data to guide clinical decision-making in routine practice.

**Highlights:** Predicts surgical outcomes, Uses clinical data, Utilizes biological data, Incorporates echocardiographic data, Guides clinical decisions, Dedicated risk-score model

**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 TRI free?

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

### Which has better reviews, EchoCalc or TRI?

TRI is rated higher. EchoCalc averages 2.3 out of 5 from 23 ratings, while TRI averages 5.0 from 1 ratings.

### Do EchoCalc or TRI have ads?

Neither EchoCalc nor TRI shows ads.

### Which is updated more often, EchoCalc or TRI?

EchoCalc ships an update monthly, and TRI daily. Most recently, EchoCalc was updated on November 6, 2026 and TRI on October 30, 2026.

---

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