# i vs Perfusion Life

The clearest difference is rating: Perfusion Life at 4.9 against i's 3.4. Perfusion Life also leads on update cadence (every 6 weeks vs every 4 months) and ratings volume (63 vs 7). i's advantage is monetization model (free vs ad-supported) and iOS requirement (10.0 vs 15.6). 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.

Perfusion Life holds the better App Store score, 4.9 against 3.4. That said, the two scores are not equally well evidenced: Perfusion Life has 63 ratings behind it against 7, so its average is the more settled of the two.

i ships an update every 4 months, Perfusion Life every 6 weeks. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | i | Perfusion Life |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.4 (7 ratings)](https://appshunter.io/ios/app/i-perfuse/id817922451/reviews) | **[4.9 (63 ratings)](https://appshunter.io/ios/app/perfusion-life/id1567598675/reviews)** |
| Number of ratings | 7 | **63** |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 6 weeks** |
| Monetization | **Free** | Ad-supported |
| Size | 31 MB | 19 MB |
| Requires iOS | **10.0** | 15.6 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 12+ | 12+ |
| Developer | [Courtland Menke](https://appshunter.io/developer/817922454) | [Perfusion Life](https://appshunter.io/developer/1567598677) |

## 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


### Perfusion Life

[App page](https://appshunter.io/ios/app/perfusion-life/id1567598675)

This app helps Perfusionists find and manage career opportunities, offering visibility into available positions and on-boarding status. It aims to reduce uncertainty in travel-related work by providing a structured system for job searching and tracking.

**Highlights:** Create professional profile, Bookmark job opportunities, Monitor on-boarding status, Integrated calendar, Access relief and full-time placements, Reduce travel ambiguity

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is i free?

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

### Is Perfusion Life free?

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

### Which has better reviews, i or Perfusion Life?

Perfusion Life is rated higher. i averages 3.4 out of 5 from 7 ratings, while Perfusion Life averages 4.9 from 63 ratings.

### Do i or Perfusion Life have ads?

Neither i nor Perfusion Life shows ads.

### Which is updated more often, i or Perfusion Life?

i ships an update every 4 months, and Perfusion Life every 6 weeks. Most recently, i was updated on October 23, 2026 and Perfusion Life on October 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.*