# Cardio Shock vs IVUSAID

The clearest difference is ads: Cardio Shock at none against IVUSAID's shown. Cardio Shock also leads on update cadence (every 5 weeks vs every 18 months) and monetization model (free vs ad-supported). On price, rating, 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.

On the App Store both sit at effectively the same score — 5.0 for Cardio Shock against 5.0 for IVUSAID. Both are backed by a comparable volume of ratings — 4 and 1 respectively.

Cardio Shock ships an update every 5 weeks, IVUSAID every 18 months. The most recent releases landed on November 2, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Cardio Shock | IVUSAID |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (4 ratings)](https://appshunter.io/ios/app/cardio-shock/id1439394483/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/ivusaid/id6447531663/reviews) |
| Number of ratings | **4** | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 5 weeks** | Every 18 months |
| Monetization | **Free** | Ad-supported |
| Size | 7 MB | 80 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Affan Haleem](https://appshunter.io/developer/1380371873) | [Cardiology Apps LLC](https://appshunter.io/developer/1639925847) |

## What reviewers say

### Cardio Shock

[App page](https://appshunter.io/ios/app/cardio-shock/id1439394483)

This medical app calculates CPO and PAPi to help assess patient candidacy for mechanical support. It utilizes formulas based on research from The Detroit Shock Initiative to provide these critical medical calculations.

**Highlights:** CPO calculation, PAPi calculation, Mechanical support assessment, Based on Detroit Shock Initiative findings, BSA and Fick formulas

**Features:** macOS Compatibility

**In-app purchases:** none


### IVUSAID

[App page](https://appshunter.io/ios/app/ivusaid/id6447531663)

This free educational app teaches medical professionals how to use intravascular ultrasound (IVUS) for PCI guidance. It features interactive lessons, image interpretation tools, and complex case studies to overcome barriers to IVUS adoption.

**Highlights:** IVUS principles and image acquisition, Image interpretation with videos and descriptions, Complex coronary case studies, Interactive quiz section with explanations, PCI guidance for stent sizing and optimization

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Cardio Shock free?

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

### Is IVUSAID free?

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

### Which has better reviews, Cardio Shock or IVUSAID?

Cardio Shock and IVUSAID are both rated 5.0 out of 5 on the App Store, from 4 and 1 ratings respectively.

### Do Cardio Shock or IVUSAID have ads?

IVUSAID shows ads; Cardio Shock does not.

### Which is updated more often, Cardio Shock or IVUSAID?

Cardio Shock ships an update every 5 weeks, and IVUSAID every 18 months. Most recently, Cardio Shock was updated on November 2, 2026 and IVUSAID on October 30, 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.*