# i vs ECMO Bedside Guide

The clearest difference is review sentiment: ECMO Bedside Guide at 100% against i's 0%. ECMO Bedside Guide also leads on rating (5.0 vs 3.4). i's advantage is device support (4 vs 2) and iOS requirement (10.0 vs 13.0). On price, ratings volume, update cadence and ads there is nothing between them.

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

ECMO Bedside Guide holds the better App Store score, 5.0 against 3.4. Both are backed by a comparable volume of ratings — 7 and 7 respectively. Written reviews point the same way: 0% of i's written reviews are positive against 100% of ECMO Bedside Guide's.

Both ship on a similar rhythm, roughly every 4 months. The most recent releases landed on September 21, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | i | ECMO Bedside Guide |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.4 (7 ratings)](https://appshunter.io/ios/app/i-perfuse/id817922451/reviews) | **[5.0 (7 ratings)](https://appshunter.io/ios/app/ecmo-bedside-guide/id6738068755/reviews)** |
| Number of ratings | 7 | 7 |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | Every 4 months |
| Monetization | Free | Free |
| Size | 31 MB | 58 MB |
| Requires iOS | **10.0** | 13.0 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPod |
| Age rating | 12+ | 17+ |
| Developer | [Courtland Menke](https://appshunter.io/developer/817922454) | [Extracorporeal Life Support Organization](https://appshunter.io/developer/1504162103) |

## What reviewers say

### i

[App page](https://appshunter.io/ios/app/i-perfuse/id817922451)

This medical app assists clinical perfusionists and students with cardiac surgery calculations. It offers tools for patient volume, flow rates, drug information, and quizzes. Access common equations and perfusion news within the app.

**Highlights:** Adult and Pediatric Calculators, SVR and PVR Calculator, Oxygen Delivery and Consumption Calculator, Pediatric Cannula Recommendations, Searchable Drug Database, Multiple Choice Quiz, Common Equations and Normal Values

**Features:** macOS Compatibility

**In-app purchases:** none


### ECMO Bedside Guide

[App page](https://appshunter.io/ios/app/ecmo-bedside-guide/id6738068755)

This app provides healthcare professionals with essential, offline access to vital information for managing patients on Extracorporeal Membrane Oxygenation (ECMO). It includes calculators, checklists, medication dosing, equipment details, and emergency guidance.

**Highlights:** Rapid calculations for BSA, flows, and oxygenation, Comprehensive checklists for ECMO management, Medication dosing information, Equipment specifications and usage, Candidacy assessments for adult and pediatric patients, Emergency guidance with 'Panic!' button, Offline access to all features

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is i free?

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

### Is ECMO Bedside Guide free?

ECMO Bedside Guide is free to download, with no in-app purchases.

### Which has better reviews, i or ECMO Bedside Guide?

ECMO Bedside Guide is rated higher. i averages 3.4 out of 5 from 7 ratings, while ECMO Bedside Guide averages 5.0 from 7 ratings.

### Do i or ECMO Bedside Guide have ads?

Neither i nor ECMO Bedside Guide shows ads.

### Which is updated more often, i or ECMO Bedside Guide?

i ships an update every 4 months, and ECMO Bedside Guide every 4 months. Most recently, i was updated on September 21, 2026 and ECMO Bedside Guide on September 24, 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.*