# ECG Corner vs Sonolex

The clearest difference is update cadence: Sonolex at weekly against ECG Corner's every 3 months. ECG Corner's advantage is iOS requirement (12.0 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ECG Corner ships an update every 3 months, Sonolex weekly. The most recent releases landed on October 1, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | ECG Corner | Sonolex |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/ecg-corner/id1565554843/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Weekly** |
| Monetization | Free | — |
| Size | 56 MB | 8 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Ying Chi Yang](https://appshunter.io/developer/1565554845) | [Shalinder Singh](https://appshunter.io/developer/6774460940) |

## What reviewers say

### ECG Corner

[App page](https://appshunter.io/ios/app/ecg-corner/id1565554843)

This app provides a vast library of ECG cases for medical professionals and students. It features cases categorized by difficulty and includes diagnoses, rationales, and references to aid learning.

**Highlights:** Comprehensive ECG case collection, Cases segmented by proficiency level, Question, diagnosis, and rationale format, Hyperlinked references and supplementary materials, Content reviewed by board-certified specialists

**Features:** macOS Compatibility

**In-app purchases:** none


### Sonolex

[App page](https://appshunter.io/ios/app/sonolex/id6774460938)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ECG Corner free?

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

### Is Sonolex free?

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

### Do ECG Corner or Sonolex have ads?

Neither ECG Corner nor Sonolex shows ads.

### Which is updated more often, ECG Corner or Sonolex?

ECG Corner ships an update every 3 months, and Sonolex weekly. Most recently, ECG Corner was updated on October 1, 2026 and Sonolex on October 8, 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.*