# ABG Calculator vs ImagingGuide

The clearest difference is update cadence: ImagingGuide at every 2 months against ABG Calculator's every 4 months. ABG Calculator's advantage is iOS requirement (18.2 vs 26.1). On price 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.

ABG Calculator ships an update every 4 months, ImagingGuide every 2 months. The most recent releases landed on October 30, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | ABG Calculator | ImagingGuide |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (8 ratings)](https://appshunter.io/ios/app/abg-calculator-pulmoro/id6753176045/reviews)** | — |
| Number of ratings | **8** | — |
| In-app purchases | No | No |
| Ads | No | — |
| Update frequency | Every 4 months | **Every 2 months** |
| Monetization | Free | — |
| Size | 6 MB | 11 MB |
| Requires iOS | **18.2** | 26.1 |
| Devices | **iPhone** | — |
| Age rating | 17+ | 4+ |
| Developer | [Hamza Crichlow](https://appshunter.io/developer/1842860402) | [Dzuy Do](https://appshunter.io/developer/1859439808) |

## What reviewers say

### ABG Calculator

[App page](https://appshunter.io/ios/app/abg-calculator-pulmoro/id6753176045)

This clinical decision support app assists healthcare professionals in managing patients with respiratory conditions. It offers evidence-based calculations, guided interpretations of arterial blood gases, and educational context for real-time bedside care. The tool aims to simplify critical decisions while maintaining depth and accuracy.

**Highlights:** Arterial blood gas (ABG) interpretations, Integrated oxygenation analysis, Respiratory and ventilator focused calculators, Case studies for practical application, Offline functionality, Light and dark mode support

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

**In-app purchases:** none


### ImagingGuide

[App page](https://appshunter.io/ios/app/imagingguide/id6761346019)

**In-app purchases:** none


## Frequently asked questions

### Is ABG Calculator free?

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

### Is ImagingGuide free?

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

### Which is updated more often, ABG Calculator or ImagingGuide?

ABG Calculator ships an update every 4 months, and ImagingGuide every 2 months. Most recently, ABG Calculator was updated on October 30, 2026 and ImagingGuide on October 16, 2026.

---

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