# InvoSurg vs MCSAID

The clearest difference is update cadence: InvoSurg at every 10 months against MCSAID's every 40 months. 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.

InvoSurg ships an update every 10 months, MCSAID every 40 months. The most recent releases landed on October 12, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | InvoSurg | MCSAID |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (11 ratings)](https://appshunter.io/ios/app/invosurg/id1480250400/reviews)** | — |
| Number of ratings | **11** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 10 months** | Every 40 months |
| Monetization | Free | — |
| Size | 22 MB | 46 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Invosurg Inc.](https://appshunter.io/developer/1480250399) | [Cardiology Apps LLC](https://appshunter.io/developer/1639925847) |

## What reviewers say

### InvoSurg

[App page](https://appshunter.io/ios/app/invosurg/id1480250400)

This medical app assists cardiac surgery clinicians by providing access to individualized care information, calculations for delivered oxygen during cardiopulmonary bypass, and a repository of educational events and publications. It serves as a convenient mobile reference for CPB and Extra Corporeal Life Support therapies, along with evidence-based guidelines.

**Highlights:** Individualized care information, Delivered Oxygen (DO2) calculation, Educational event calendar, CPB and ECLS therapy information, Evidence-Based Guidelines reference, Cardiac surgery publications

**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 InvoSurg free?

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

### Is MCSAID free?

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

### Do InvoSurg or MCSAID have ads?

Neither InvoSurg nor MCSAID shows ads.

### Which is updated more often, InvoSurg or MCSAID?

InvoSurg ships an update every 10 months, and MCSAID every 40 months. Most recently, InvoSurg was updated on October 12, 2026 and MCSAID on September 12, 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.*