# ECG vs ECG Interpretation

The clearest difference is in-app purchases: ECG at none against ECG Interpretation's 1. ECG also leads on update cadence (fortnightly vs every 5 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. ECG Interpretation sells 1 in-app purchase, starting at $29.99 per year. ECG asks for nothing beyond the download.

ECG ships an update fortnightly, ECG Interpretation every 5 months. The most recent releases landed on November 7, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | ECG | ECG Interpretation |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/ecg-interpretation-pkt-guide/id1633603649/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | **Fortnightly** | Every 5 months |
| Monetization | — | Free with in-app purchases |
| Size | 37 MB | 46 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 17+ |
| Developer | [Putu Angga Risky Raharja](https://appshunter.io/developer/1164107753) | [Skyscape Medpresso Inc](https://appshunter.io/developer/818609416) |

## What reviewers say

### ECG

[App page](https://appshunter.io/ios/app/ecg-corrected-qt-interval/id1575723032)

**Features:** macOS Compatibility

**In-app purchases:** none


### ECG Interpretation

[App page](https://appshunter.io/ios/app/ecg-interpretation-pkt-guide/id1633603649)

This pocket guide offers essential skills for ECG interpretation, rhythm strip analysis, and arrhythmia treatment. It features helpful charts, illustrations, and definitions for students and new nurses. Access content offline and use smart search for quick information retrieval.

**Highlights:** ECG interpretation and rhythm strip analysis, Arrhythmia identification and treatment, Helpful charts, illustrations, and definitions, Offline content access, SmartSearch technology, Practice Q&A and ACLS algorithms

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ECG Interpret. PktGuide 1Y Sub | $29.99 | per year |


## Frequently asked questions

### Is ECG free?

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

### Is ECG Interpretation free?

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

### Do ECG or ECG Interpretation have ads?

Both ECG and ECG Interpretation show ads.

### Which is updated more often, ECG or ECG Interpretation?

ECG ships an update fortnightly, and ECG Interpretation every 5 months. Most recently, ECG was updated on November 7, 2026 and ECG Interpretation on November 3, 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.*