# EchoCalc vs iCU Notes

The clearest difference is review sentiment: iCU Notes at 100% against EchoCalc's 49%. iCU Notes also leads on rating (4.8 vs 2.3) and in-app purchases (none vs 3). EchoCalc's advantage is update cadence (monthly vs every 10 months). On price, ratings volume, ads and device support there is nothing between them.

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

iCU Notes holds the better App Store score, 4.8 against 2.3. Both are backed by a comparable volume of ratings — 23 and 12 respectively. Written reviews point the same way: 49% of EchoCalc's written reviews are positive against 100% of iCU Notes's.

EchoCalc ships an update monthly, iCU Notes every 10 months. The most recent releases landed on October 5, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | EchoCalc | iCU Notes |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.3 (23 ratings)](https://appshunter.io/ios/app/echocalc/id468166426/reviews) | **[4.8 (12 ratings)](https://appshunter.io/ios/app/icu-notes/id487637612/reviews)** |
| Number of ratings | **23** | 12 |
| Positive reviews | 48.8% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Monthly** | Every 10 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 7 MB | 48 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) | [DocNotes Ltd](https://appshunter.io/developer/487637615) |

## 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 |


### iCU Notes

[App page](https://appshunter.io/ios/app/icu-notes/id487637612)

A comprehensive pocket guide for critical care professionals, offering quick access to essential concepts, algorithms, and management strategies. Features include detailed modules, smart search, and evidence-based recommendations.

**Highlights:** 11 modules on critical care concepts, Alphabetized and smart search functionality, Over 80 color illustrations, 30+ clinical ICU guideline overviews, 18 emergency algorithms, Differential diagnoses and management strategies, Evidence-based recommendations

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is EchoCalc free?

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

### Is iCU Notes free?

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

### Which has better reviews, EchoCalc or iCU Notes?

iCU Notes is rated higher. EchoCalc averages 2.3 out of 5 from 23 ratings, while iCU Notes averages 4.8 from 12 ratings.

### Do EchoCalc or iCU Notes have ads?

Neither EchoCalc nor iCU Notes shows ads.

### Which is updated more often, EchoCalc or iCU Notes?

EchoCalc ships an update monthly, and iCU Notes every 10 months. Most recently, EchoCalc was updated on October 5, 2026 and iCU Notes on September 17, 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.*