# EigenFlow Advanced vs InvoSurg

The clearest difference is review sentiment: InvoSurg at 100% against EigenFlow Advanced's 0%. InvoSurg also leads on rating (4.3 vs 1.0) and ratings volume (11 vs 1). EigenFlow Advanced's advantage is update cadence (monthly vs every 10 months) and iOS requirement (10.0 vs 14.0). On price, ads, in-app purchases and monetization model there is nothing between them.

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

InvoSurg holds the better App Store score, 4.3 against 1.0. That said, the two scores are not equally well evidenced: InvoSurg has 11 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 0% of EigenFlow Advanced's written reviews are positive against 100% of InvoSurg's.

EigenFlow Advanced ships an update monthly, InvoSurg every 10 months. The most recent releases landed on September 30, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | EigenFlow Advanced | InvoSurg |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/eigenflow-advanced/id1470136404/reviews) | **[4.3 (11 ratings)](https://appshunter.io/ios/app/invosurg/id1480250400/reviews)** |
| Number of ratings | 1 | **11** |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 10 months |
| Monetization | Free | Free |
| Size | 112 MB | 22 MB |
| Requires iOS | **10.0** | 14.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Curtis Life Research LLC (apps)](https://appshunter.io/developer/1053758176) | [Invosurg Inc.](https://appshunter.io/developer/1480250399) |

## What reviewers say

### EigenFlow Advanced

[App page](https://appshunter.io/ios/app/eigenflow-advanced/id1470136404)

This medical simulation app allows users to practice ECMO emergencies with automated scenarios, adjustable valve controls for various complications, and the ability to simulate air embolisms and hypovolemia. It also displays a comprehensive range of simulated vital blood parameters.

**Highlights:** Automated ECMO emergency scenarios, Variable flow and pressure controls, Simulate thrombus and air embolus, Hypovolemia simulation, Comprehensive blood parameter monitoring

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is EigenFlow Advanced free?

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

### Is InvoSurg free?

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

### Which has better reviews, EigenFlow Advanced or InvoSurg?

InvoSurg is rated higher. EigenFlow Advanced averages 1.0 out of 5 from 1 ratings, while InvoSurg averages 4.3 from 11 ratings.

### Do EigenFlow Advanced or InvoSurg have ads?

Neither EigenFlow Advanced nor InvoSurg shows ads.

### Which is updated more often, EigenFlow Advanced or InvoSurg?

EigenFlow Advanced ships an update monthly, and InvoSurg every 10 months. Most recently, EigenFlow Advanced was updated on September 30, 2026 and InvoSurg on September 26, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*