Comparison

Pneumotox. vs Diagnosaurus® DDx

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Pneumotox.

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
Read full description

Pneumotox®: The drug-induced/iatrogenic respiratory disease website & App. The companion website and App Cardiotox® cover drug-induced cardiotoxicity. By Philippe Camus MD. Professor (emeritus) - Board-certified in pulmonary medicine and cardiology,- Université Bourgone-Europe, Dijon, France. Pneumotox is an aid to the diagnosis and management of respiratory diseases and reactions suspected of being induced by drugs, chemicals, and of iatrogenic origin. Causality assessment and exact diagnosis are the full responsibility of the user. Pneumotox is designed to provide regularly-updated information on drugs causing pulmonary toxicity (>1,700 agents), patterns of involvement (>820) and bibliography (>10,700 as of August 2026) within a few minutes. That may be the crux in emergency situations. Yet, double-checking in and from other sources is indicated. Pneumotox rests on a bibliographic repository built since 1978, which amounts to >50,000 references overall, the vast majority of which is indexed in PubMed. All references were and are carefully reviewed for reliability and causality by the founder, then indexed under the corresponding drug or agent in Pneumotox. Pneumotox can be assessed by causative drug(s), chemicals, herbals, substances of abuse, inhaled incl. e-cigarettes, vaping, inhalants, gases, ionizing radiations (providing the list of patterns), or by patterns of involvement (providing the list of causal drugs/agents). Drug names are generic (International Nonproprietary Names (INN), alphabetical), not brand ones. It may be appropriate to check the exact composition of any proprietary drug, as any other added substance or excipient can be pneumotoxic. Matching generic and brand names which differs with country is the responsibility of the user. Patterns are grouped by families according to the main anatomic site of involvement. If a drug or drug reaction is listed in Pneumotox, that does not equate the patient is demonstrating toxicity. A “Diagnosing DIRD” window in Pneumotox (top panel) may help secure the diagnosis. Lack of case or cases in the literature or in Pneumotox does not exclude a diagnosis of drug toxicity as there may be unpublished cases, you may be seeing the first case ever, or we may have overlooked some information. In such situations, please inform us; Pneumotox cannot be held responsible. Pneumotox can be contacted by mail 7/365 for complementary information, tailored literature, and/or data on rechallenge with the drug. In any patient, particularly the ones with acute respiratory failure, ARDS or acute bronchospasm, exposure to drugs, substances, and/or chemicals must be done exhaustively with the patient, and if needed with the family, health professionals, pharmacy and/or law enforcement personel. And prompt removal of the drug can be lifesaving. Caution: drug withdrawal can produce a flare of the underlying condition for which the drug was exactly given. Deliberate rechallenge can be hazardous as fatal relapse of the respiratiory reaction can supervene. Early sampling of body fluids for drug and/or metabolites is indicated as early as possible, particularly in the severely ill. Knowledge of toxidromes and antidotes capable of countering adverse effects of drugs or chemicals is essential (ex: PMID ). Where in doubt, consider double-checking PubMed, your affiliated Safety for Medicines Department/Agency and the Pharmacovigilance Department of drug companies. They may host more and/or undisclosed information. Patients should be reassured as such incidents are rare oveall. If needed, they are invited to consult with their treating physicians. Monitoring common causal agents (with red digits in stars) for impending toxicity is strongly advised. You may contact Pneumotox anytime through the contact window. ALL RIGHTS RESERVED The current version of Pneumotox website and App were developed by Akyos Communication Dijon France, under the guidance of Philippe Camus MD

About

Diagnosaurus® DDx

This medical reference tool assists healthcare professionals in performing differential diagnoses quickly and confidently. It offers a searchable database of over 1,000 diagnoses, cross-referenced for related conditions, and allows users to save favorite entries and make custom notes.

Highlights
  • Over 1,000 differential diagnoses
  • Search by organ system, symptom, or disease
  • See Related DDx feature
  • Save favorite entries
  • Highlight and make custom notes
  • Universal Index Search
Features
Read full description

** Top-Selling App Used by Tens of Thousands of Health Professionals, Worldwide ** ABOUT DIAGNOSAURUS DDX This quick-reference tool helps healthcare professionals perform differential diagnosis with speed and confidence at the point of care. With Diagnosaurus you can quickly search over 1,000 diagnoses by organ system, symptom, or disease, or you can view all entries. Use the valuable “See Related DDx” feature within each entry to consider alternative diagnoses and quickly link to those entries. The convenient “Favorites” feature allows you to save specific searches and bookmark in your personal archive. FEATURES • More than 1,000 differential diagnoses • Highlight and make custom notes within entries • Entries organized in quick-read format • “See Related DDx” links to other potential diagnoses • Disease, symptom, and organ system indexes • “Favorites” for bookmarking important entries • Universal Index Search to help find answers fast Author: Roni F. Zeiger, MD Publisher: McGraw-Hill Medical Powered by: Unbound Medicine

Screenshots

Pneumotox.4 screens
Diagnosaurus® DDx4 screens

Verdict

The call

The clearest difference is in-app purchases: Pneumotox. at none against Diagnosaurus® DDx's 1. Diagnosaurus® DDx's advantage is ratings volume (2.5K vs 7) and update cadence (every 10 months vs every 42 months). On price, rating, review sentiment and ads there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Diagnosaurus® DDx sells 1 one-off in-app purchase. Pneumotox. asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.9 for Pneumotox. against 4.8 for Diagnosaurus® DDx. That said, the two scores are not equally well evidenced: Diagnosaurus® DDx has 2.5K ratings behind it against 7, so its average is the more settled of the two. Written reviews are what separate them: 50% of Pneumotox.'s written reviews are positive against 53% of Diagnosaurus® DDx's.

UpkeepUpdate frequency

Pneumotox. ships an update every 42 months, Diagnosaurus® DDx every 10 months. The most recent releases landed on November 1, 2026 and November 6, 2026 respectively.

Scorecard5 real differences · 5 level
Pneumotox. versus Diagnosaurus® DDx: the parameters behind the verdict, then further details
ParameterPneumotox.Diagnosaurus® DDx
PriceFreeFree
Rating4.9 (7 ratings) — better4.8 (2.5K ratings)
Positive reviews50.0% of reviews53.2% of reviews — better
Number of ratings72.5K — better
Update frequencyEvery 42 monthsEvery 10 months — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad, iPod, Mac — better
Requires iOS16.415.0 — better
Further details — not scored
Size48 MB19 MB
Age rating17+17+
DeveloperPhilippe CamusUnbound Medicine, Inc.

Customer experience

Pneumotox.

All ratings7 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews4 reviews
Positive50.0%
Neutral25.0%
Negative25.0%

Diagnosaurus® DDx

All ratings2,500 ratings
Positive96.2%
Neutral1.6%
Negative2.2%
Written reviews77 reviews
Positive53.2%
Neutral2.6%
Negative44.2%

Bugs and requests

Pneumotox.

Not enough reviews yet to summarise bugs or requests.

Diagnosaurus® DDx

Reported bugs

3 issues
  • Subscription issues and inability to restore purchases
  • Blank pages and non-functional content
  • Compatibility issues with newer iOS versions

Requested features

5 requests
  • Add ability to edit or add custom differential diagnoses
  • Improve search functionality and navigation
  • Provide more detailed information on conditions
  • Integrate with other medical resources and databases
  • Improve support for older devices and iOS versions

In-app purchases

None

Pneumotox.

No in-app purchases

1 purchases

Diagnosaurus® DDx

One-time1
  • Diagnosaurus DDx$4.99

Questions

Is Pneumotox. free?
Pneumotox. is free to download, with no in-app purchases.
Is Diagnosaurus® DDx free?
Diagnosaurus® DDx is free to download, with in-app purchases available.
Which has better reviews, Pneumotox. or Diagnosaurus® DDx?
Pneumotox. is rated higher. Pneumotox. averages 4.9 out of 5 from 7 ratings, while Diagnosaurus® DDx averages 4.8 from 2.5K ratings.
Do Pneumotox. or Diagnosaurus® DDx have ads?
Neither Pneumotox. nor Diagnosaurus® DDx shows ads.
Which is updated more often, Pneumotox. or Diagnosaurus® DDx?
Pneumotox. ships an update every 42 months, and Diagnosaurus® DDx every 10 months. Most recently, Pneumotox. was updated on November 1, 2026 and Diagnosaurus® DDx on November 6, 2026.

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