# InvoSurg vs ELSO Educational Tools

The clearest difference is review sentiment: InvoSurg at 100% against ELSO Educational Tools's 0%. InvoSurg also leads on rating (4.3 vs 1.0) and ratings volume (11 vs 2). ELSO Educational Tools's advantage is update cadence (every 5 days vs every 10 months) and iOS requirement (12.0 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 2, so its average is the more settled of the two. Written reviews point the same way: 100% of InvoSurg's written reviews are positive against 0% of ELSO Educational Tools's.

InvoSurg ships an update every 10 months, ELSO Educational Tools every 5 days. The most recent releases landed on October 12, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | InvoSurg | ELSO Educational Tools |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (11 ratings)](https://appshunter.io/ios/app/invosurg/id1480250400/reviews)** | [1.0 (2 ratings)](https://appshunter.io/ios/app/elso-educational-tools/id6443335423/reviews) |
| Number of ratings | **11** | 2 |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 5 days** |
| Monetization | Free | Free |
| Size | 22 MB | 22 MB |
| Requires iOS | 14.0 | **12.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 12+ |
| Developer | [Invosurg Inc.](https://appshunter.io/developer/1480250399) | [Extracorporeal Life Support Organization](https://appshunter.io/developer/1504162103) |

## 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


### ELSO Educational Tools

[App page](https://appshunter.io/ios/app/elso-educational-tools/id6443335423)

This application provides students with simulators to practice using ECMO equipment. It offers clinical tools and easy navigation across various topics related to organ support therapies. Designed for medical students and professionals.

**Highlights:** ECMO simulators, Clinical tools, Easy navigation, Educational content

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is InvoSurg free?

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

### Is ELSO Educational Tools free?

ELSO Educational Tools is free to download, with no in-app purchases.

### Which has better reviews, InvoSurg or ELSO Educational Tools?

InvoSurg is rated higher. InvoSurg averages 4.3 out of 5 from 11 ratings, while ELSO Educational Tools averages 1.0 from 2 ratings.

### Do InvoSurg or ELSO Educational Tools have ads?

Neither InvoSurg nor ELSO Educational Tools shows ads.

### Which is updated more often, InvoSurg or ELSO Educational Tools?

InvoSurg ships an update every 10 months, and ELSO Educational Tools every 5 days. Most recently, InvoSurg was updated on October 12, 2026 and ELSO Educational Tools on September 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.*