# Ventilator Guide vs Respiratory Assistant

The clearest difference is price: Ventilator Guide at Free against Respiratory Assistant's $3.99. Ventilator Guide also leads on iOS requirement (11.0 vs 13.0). Respiratory Assistant's advantage is update cadence (every 3 weeks vs every 30 months) and chart position (#196 vs unranked). On ads, in-app purchases and device support there is nothing between them.

Ventilator Guide is free to download; Respiratory Assistant costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Ventilator Guide ships an update every 30 months, Respiratory Assistant every 3 weeks. The most recent releases landed on October 2, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Ventilator Guide | Respiratory Assistant |
| --- | --- | --- |
| Price | **Free** | $3.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 30 months | **Every 3 weeks** |
| Best chart rank | — | **#196** |
| Size | 116 MB | 31 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | +17 |
| Developer | [OSF Healthcare System](https://appshunter.io/developer/1053621635) | [Neural Hound, Ltd.](https://appshunter.io/developer/1855147431) |

## What reviewers say

### Ventilator Guide

[App page](https://appshunter.io/ios/app/ventilator-guide/id1522572803)

**Features:** macOS Compatibility

**In-app purchases:** none


### Respiratory Assistant

[App page](https://appshunter.io/ios/app/respiratory-assistant/id6755638455)

**Currently charting:** #196 Top Paid · Medical (US App Store)

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

**In-app purchases:** none


## Frequently asked questions

### Is Ventilator Guide free?

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

### Is Respiratory Assistant free?

Respiratory Assistant costs $3.99, with no in-app purchases.

### Do Ventilator Guide or Respiratory Assistant have ads?

Neither Ventilator Guide nor Respiratory Assistant shows ads.

### Which is updated more often, Ventilator Guide or Respiratory Assistant?

Ventilator Guide ships an update every 30 months, and Respiratory Assistant every 3 weeks. Most recently, Ventilator Guide was updated on October 2, 2026 and Respiratory Assistant on October 1, 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.*