# Pneumotox. vs Differential Diagnosis Guide

The clearest difference is review sentiment: Differential Diagnosis Guide at 93% against Pneumotox.'s 50%. Differential Diagnosis Guide also leads on update cadence (every 4 months vs every 42 months) and ratings volume (23 vs 7). Pneumotox.'s advantage is rating (4.9 vs 4.5). On price, ads, in-app purchases and monetization model there is nothing between them.

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

Pneumotox. holds the better App Store score, 4.9 against 4.5. Both are backed by a comparable volume of ratings — 7 and 23 respectively. Written reviews complicate that: 50% of Pneumotox.'s written reviews are positive against 93% of Differential Diagnosis Guide's, so the app with the better star average is not the one people write more warmly about.

Pneumotox. ships an update every 42 months, Differential Diagnosis Guide every 4 months. The most recent releases landed on November 6, 2026 and November 1, 2026 respectively.

## The numbers

| Metric | Pneumotox. | Differential Diagnosis Guide |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (7 ratings)](https://appshunter.io/ios/app/pneumotox/id495707401/reviews)** | [4.5 (23 ratings)](https://appshunter.io/ios/app/differential-diagnosis-guide/id523946690/reviews) |
| Number of ratings | 7 | **23** |
| Positive reviews | 50.0% of reviews | **93.3% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 42 months | **Every 4 months** |
| Monetization | Free | Free |
| Size | 48 MB | 48 MB |
| Requires iOS | 16.4 | **8.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | 12+ |
| Developer | [Philippe Camus](https://appshunter.io/developer/1438857331) | [RADIOLOGiQ, LLC](https://appshunter.io/developer/519524135) |

## What reviewers say

### Pneumotox.

[App page](https://appshunter.io/ios/app/pneumotox/id495707401)

This app aids in diagnosing respiratory and cardiac diseases suspected of being drug-induced. It provides extensive information and bibliography from over 35,000 reviewed references, organized by causative drugs and respiratory patterns. It helps assess drug causality and offers diagnostic prompts.

**Highlights:** Diagnose drug-induced respiratory diseases, Extensive bibliography from 35,000+ references, Organized by causative drugs and respiratory patterns, Drug causality assessment tool, Diagnostic prompts and Naranjo scale integration, Information on various drug administration routes

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

**In-app purchases:** none


### Differential Diagnosis Guide

[App page](https://appshunter.io/ios/app/differential-diagnosis-guide/id523946690)

This app helps medical professionals and students review differential diagnoses for chest CT findings. It offers a powerful search tool and curated lists to explore diseases and their common imaging presentations, complete with over 100 CT images.

**Highlights:** Review differential diagnoses for chest CT findings, Discover common CT imaging presentations, Search hundreds of diseases and imaging findings, Browse differential diagnosis lists by organ system, Includes over 100 curated CT images, Voice recognition search

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

**In-app purchases:** none


## Frequently asked questions

### Is Pneumotox. free?

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

### Is Differential Diagnosis Guide free?

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

### Which has better reviews, Pneumotox. or Differential Diagnosis Guide?

Pneumotox. is rated higher. Pneumotox. averages 4.9 out of 5 from 7 ratings, while Differential Diagnosis Guide averages 4.5 from 23 ratings.

### Do Pneumotox. or Differential Diagnosis Guide have ads?

Neither Pneumotox. nor Differential Diagnosis Guide shows ads.

### Which is updated more often, Pneumotox. or Differential Diagnosis Guide?

Pneumotox. ships an update every 42 months, and Differential Diagnosis Guide every 4 months. Most recently, Pneumotox. was updated on November 6, 2026 and Differential Diagnosis Guide on November 1, 2026.

---

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