# Pneumotox. vs ACP MKSAP

The clearest difference is rating: Pneumotox. at 4.9 against ACP MKSAP's 4.2. Pneumotox. also leads on in-app purchases (none vs 1). ACP MKSAP's advantage is update cadence (every 10 days vs every 42 months) and iOS requirement (13.0 vs 16.4). On price, review sentiment, ratings volume and ads there is nothing between them.

Both are free to download. ACP MKSAP sells 1 in-app purchase, starting at $999.99 per year. Pneumotox. asks for nothing beyond the download.

Pneumotox. holds the better App Store score, 4.9 against 4.2. Both are backed by a comparable volume of ratings — 7 and 17 respectively. Written reviews complicate that: 50% of Pneumotox.'s written reviews are positive against 57% of ACP MKSAP'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, ACP MKSAP every 10 days. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Pneumotox. | ACP MKSAP |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (7 ratings)](https://appshunter.io/ios/app/pneumotox/id495707401/reviews)** | [4.2 (17 ratings)](https://appshunter.io/ios/app/acp-mksap/id6739636797/reviews) |
| Number of ratings | 7 | **17** |
| Positive reviews | 50.0% of reviews | **57.1% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 42 months | **Every 10 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 48 MB | 540 MB |
| Requires iOS | 16.4 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [Philippe Camus](https://appshunter.io/developer/1438857331) | [American College of Physicians](https://appshunter.io/developer/371090673) |

## 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


### ACP MKSAP

[App page](https://appshunter.io/ios/app/acp-mksap/id6739636797)

Access comprehensive internal medicine knowledge and practice exam-style questions offline. This app syncs your progress with the online version when connected to the internet. It's designed for physicians to stay updated on the latest evidence and enhance their clinical decision-making skills.

**Highlights:** Offline access to text and questions, Thousands of exam-like multiple-choice questions, Patient-based clinical scenarios, Syncs progress with online version, Includes figures, charts, and tables, Targets knowledge gaps

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Non-member in-app price | $999.99 | per year |


## Frequently asked questions

### Is Pneumotox. free?

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

### Is ACP MKSAP free?

ACP MKSAP is free to download, with in-app purchases available.

### Which has better reviews, Pneumotox. or ACP MKSAP?

Pneumotox. is rated higher. Pneumotox. averages 4.9 out of 5 from 7 ratings, while ACP MKSAP averages 4.2 from 17 ratings.

### Do Pneumotox. or ACP MKSAP have ads?

Neither Pneumotox. nor ACP MKSAP shows ads.

### Which is updated more often, Pneumotox. or ACP MKSAP?

Pneumotox. ships an update every 42 months, and ACP MKSAP every 10 days. Most recently, Pneumotox. was updated on November 6, 2026 and ACP MKSAP on November 3, 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.*