# VentRef vs PulmTools

The clearest difference is update cadence: PulmTools at every 5 days against VentRef's every 3 weeks. PulmTools also leads on iOS requirement (18.5 vs 26.0). VentRef's advantage is ratings volume (44 vs 8). On price, rating, review sentiment 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.

On the App Store both sit at effectively the same score — 5.0 for VentRef against 5.0 for PulmTools. That said, the two scores are not equally well evidenced: VentRef has 44 ratings behind it against 8, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

VentRef ships an update every 3 weeks, PulmTools every 5 days. The most recent releases landed on October 10, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | VentRef | PulmTools |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (44 ratings)](https://appshunter.io/ios/app/ventref/id6756503414/reviews) | [5.0 (8 ratings)](https://appshunter.io/ios/app/pulmtools-abg-and-vbg-analyzer/id6770799843/reviews) |
| Number of ratings | **44** | 8 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 5 days** |
| Monetization | Free | Free |
| Size | 27 MB | 55 MB |
| Requires iOS | 26.0 | **18.5** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 17+ | 17+ |
| Developer | [Rishi Kumar](https://appshunter.io/developer/1434016052) | [Ledgeworks LLC](https://appshunter.io/developer/1896763783) |

## What reviewers say

### 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


### PulmTools

[App page](https://appshunter.io/ios/app/pulmtools-abg-and-vbg-analyzer/id6770799843)

This medical app helps clinicians and students interpret blood gas results, utilize clinical calculators, and practice realistic cases. It offers tools for respiratory and critical care, with progress tracking available via a free account.

**Highlights:** Interpret ABGs and VBGs, Clinical calculators and references, Realistic case practice, Progress tracking, Breathing exercises, Trend analysis

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

**In-app purchases:** none


## Frequently asked questions

### Is VentRef free?

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

### Is PulmTools free?

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

### Which has better reviews, VentRef or PulmTools?

VentRef and PulmTools are both rated 5.0 out of 5 on the App Store, from 44 and 8 ratings respectively.

### Do VentRef or PulmTools have ads?

Neither VentRef nor PulmTools shows ads.

### Which is updated more often, VentRef or PulmTools?

VentRef ships an update every 3 weeks, and PulmTools every 5 days. Most recently, VentRef was updated on October 10, 2026 and PulmTools on October 20, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*