# Fissios vs VentilO

The clearest difference is update cadence: VentilO at every 2 months against Fissios's every 6 months. Fissios's advantage is iOS requirement (11.0 vs 13.0). On price, review sentiment, ads and in-app purchases there is nothing between them.

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

Fissios ships an update every 6 months, VentilO every 2 months. The most recent releases landed on June 25, 2026 and June 15, 2026 respectively.

## The numbers

| Metric | Fissios | VentilO |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/ventilo/id1478758927/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 34 MB | 26 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [TRBL SW & IP SERVICES, S.L.](https://appshunter.io/developer/928027392) | [Institut universitaire de cardiologie et de pneumologie de Quebec](https://appshunter.io/developer/576953454) |

## What reviewers say

### Fissios

[App page](https://appshunter.io/ios/app/fissios/id1187891228)

This app guides users through respiratory physiotherapy exercises before and after surgery. It provides personalized reminders and scientifically endorsed advice to help reduce postoperative complications and shorten hospital stays. The content is created by medical professionals and can be accessed offline.

**Highlights:** Pre-operative respiratory exercises, Postoperative recovery guidance, Personalized surgery countdown, Offline access, Scientifically endorsed content, 10 guided breathing exercises

**Features:** macOS Compatibility

**In-app purchases:** none


### VentilO

[App page](https://appshunter.io/ios/app/ventilo/id1478758927)

This educational app helps healthcare professionals manage patients on mechanical ventilation. It provides guidance on setting initial parameters, optimizing settings for oxygenation and CO2 elimination, and understanding the impact of dead space. It also includes tools for calculating various respiratory parameters and links to additional resources.

**Highlights:** Initial ventilatory setting guidance, Parameter influence analysis, Optimization for oxygenation and CO2, Dead space impact education, Instrumental dead space calculation, Respiratory calculators, Links to additional tools

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Fissios free?

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

### Is VentilO free?

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

### Do Fissios or VentilO have ads?

Neither Fissios nor VentilO shows ads.

### Which is updated more often, Fissios or VentilO?

Fissios ships an update every 6 months, and VentilO every 2 months. Most recently, Fissios was updated on June 25, 2026 and VentilO on June 15, 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.*