# Cardio Shock vs MCSAID

The clearest difference is update cadence: Cardio Shock at every 5 weeks against MCSAID's every 40 months. Cardio Shock also leads on iOS requirement (12.0 vs 15.0). 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.

Cardio Shock ships an update every 5 weeks, MCSAID every 40 months. The most recent releases landed on October 21, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Cardio Shock | MCSAID |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/cardio-shock/id1439394483/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 40 months |
| Monetization | Free | — |
| Size | 7 MB | 46 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, 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


### MCSAID

[App page](https://appshunter.io/ios/app/mcsaid/id6443740248)

**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 MCSAID free?

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

### Do Cardio Shock or MCSAID have ads?

Neither Cardio Shock nor MCSAID shows ads.

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

Cardio Shock ships an update every 5 weeks, and MCSAID every 40 months. Most recently, Cardio Shock was updated on October 21, 2026 and MCSAID on October 16, 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.*