# Rapid Vent Calculator vs VentRef

The clearest difference is update cadence: VentRef at every 3 weeks against Rapid Vent Calculator's every 17 months. Rapid Vent Calculator's advantage is iOS requirement (13.0 vs 26.0). On price, rating, review sentiment and ratings volume there is nothing between them.

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

On the App Store both sit at effectively the same score — 5.0 for Rapid Vent Calculator against 5.0 for VentRef. Both are backed by a comparable volume of ratings — 45 and 42 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

Rapid Vent Calculator ships an update every 17 months, VentRef every 3 weeks. The most recent releases landed on July 22, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Rapid Vent Calculator | VentRef |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (45 ratings)](https://appshunter.io/ios/app/rapid-vent-calculator/id6451494244/reviews) | [5.0 (42 ratings)](https://appshunter.io/ios/app/ventref/id6756503414/reviews) |
| Number of ratings | **45** | 42 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 17 months | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 48 MB | 27 MB |
| Requires iOS | **13.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 17+ |
| Developer | [JENCO LLC](https://appshunter.io/developer/1698545004) | [Rishi Kumar](https://appshunter.io/developer/1434016052) |

## What reviewers say

### Rapid Vent Calculator

[App page](https://appshunter.io/ios/app/rapid-vent-calculator/id6451494244)

This medical app assists healthcare professionals in calculating essential ventilator settings and medication dosages for critical care. It provides rapid, accurate results for paramedics, respiratory therapists, nurses, and doctors, streamlining patient management.

**Highlights:** Effortless ventilator settings calculation, Rapid results for quick decision-making, RSI medication dosage assistant, User-friendly interface for medical professionals, Accurate patient parameter input

**Features:** macOS Compatibility

**In-app purchases:** none


### VentRef

[App page](https://appshunter.io/ios/app/ventref/id6756503414)

A clinical reference tool for healthcare professionals managing mechanical ventilation and oxygen therapy. It provides information grounded in respiratory physiology and evidence-based critical care.

**Highlights:** Mechanical ventilation reference, Oxygen therapy reference, Respiratory physiology, Evidence-based critical care, Clinical decision support

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

**In-app purchases:** none


## Frequently asked questions

### Is Rapid Vent Calculator free?

Rapid Vent Calculator is free to download, with no in-app purchases.

### Is VentRef free?

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

### Which has better reviews, Rapid Vent Calculator or VentRef?

Rapid Vent Calculator and VentRef are both rated 5.0 out of 5 on the App Store, from 45 and 42 ratings respectively.

### Do Rapid Vent Calculator or VentRef have ads?

Neither Rapid Vent Calculator nor VentRef shows ads.

### Which is updated more often, Rapid Vent Calculator or VentRef?

Rapid Vent Calculator ships an update every 17 months, and VentRef every 3 weeks. Most recently, Rapid Vent Calculator was updated on July 22, 2026 and VentRef on September 23, 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.*