Comparison

Diagnosaurus® DDx vs Pharma AI

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

Head to head
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

About

Pharma AI

Get reliable medical and pharmaceutical information instantly. Ask questions about medications, health tips, and drug interactions in multiple languages. Powered by advanced AI, this app provides comprehensive answers for informed health decisions.

Highlights
  • Ask medical queries in multiple languages
  • Detailed medication insights (uses, dosages, side effects)
  • Personalized health tips and advice
  • Instant, real-time responses
  • Reliable information powered by OpenAI
  • User-friendly interface
Features
Read full description

Welcome to Pharma Chat, your trusted companion for all things related to medicine, drugs, health tips, and more. With the power of OpenAI's advanced language model, this app is designed to provide you with accurate and reliable information about pharmaceuticals in multiple languages. Whether you have questions about a specific medication, need advice on health topics, or simply want to stay informed about the latest developments in the world of medicine, Pharma Chat has you covered. Medical Disclaimer: The information provided in this app is for informational purposes only and should not be considered a substitute for professional medical advice, diagnosis, or treatment. It is essential to consult with a qualified healthcare professional before making any medical decisions based on the app's information. Your health is important, and we want to ensure you receive the best care possible. Key Features: Ask Anything: Speak your medical queries in your preferred language, and Pharma Chat will provide comprehensive and understandable answers. Our AI understands various languages to ensure that you get the information you need, no matter where you are. Medication Insights: Get detailed information about medications, including uses, dosages, side effects, interactions, and more. Make informed decisions about your health by having access to accurate pharmaceutical data. Health Tips: Receive valuable tips and suggestions for maintaining a healthy lifestyle, managing illnesses, and improving your well-being. Our app empowers you to take charge of your health with expert advice. Instant Responses: Pharma Chat provides real-time responses to your questions, making it a convenient tool for quick information access. No more waiting for appointments or searching through countless websites. Reliable Information: Our app is powered by OpenAI's cutting-edge technology, ensuring that the information you receive is up-to-date, reliable, and verified by medical professionals. User-Friendly Interface: Navigate through the app effortlessly with its intuitive design. Access information seamlessly and enjoy a hassle-free experience. More you can ask: Medicine Information Drug Database Health Tips Pharma Knowledge Medical Queries Drug Interactions Medication Guide Health Advice AI Medical Companion Wellness Insights Health and Medicine Pharmaceutical Education Multilingual Health Support Instant Medical Answers Reliable Health Information Terms of use: https://itechgemini.com/pharma-chat-terms-of-use/ Policy Privacy: https://itechgemini.com/pharmachat-privacypolicy/

Screenshots

Diagnosaurus® DDx4 screens
Pharma AI4 screens

Verdict

The call

The clearest difference is price: Diagnosaurus® DDx at Free against Pharma AI's $0.99. Diagnosaurus® DDx also leads on rating (4.8 vs 3.4) and ratings volume (2.5K vs 5). Pharma AI's advantage is update cadence (every 6 weeks vs every 10 months). On ads, in-app purchases, monetization model and device support 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

Diagnosaurus® DDx is free to download; Pharma AI costs $0.99 up front. Diagnosaurus® DDx sells 1 one-off in-app purchase and Pharma AI sells 2 in-app purchases, starting at $7.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Diagnosaurus® DDx holds the better App Store score, 4.8 against 3.4. That said, the two scores are not equally well evidenced: Diagnosaurus® DDx has 2.5K ratings behind it against 5, so its average is the more settled of the two.

UpkeepUpdate frequency

Diagnosaurus® DDx ships an update every 10 months, Pharma AI every 6 weeks. Both last shipped on October 30, 2026.

Scorecard4 real differences · 6 level
Diagnosaurus® DDx versus Pharma AI: the parameters behind the verdict, then further details
ParameterDiagnosaurus® DDxPharma AI
PriceFree — better$0.99
Rating4.8 (2.5K ratings) — better3.4 (5 ratings)
Positive reviews53.2% of reviews—
Number of ratings2.5K — better5
Update frequencyEvery 10 monthsEvery 6 weeks — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPad, iPod
Requires iOS15.014.0 — better
Further details — not scored
Size19 MB26 MB
Age rating17+17+
DeveloperUnbound Medicine, Inc.Malik Hamza Khalid

Customer experience

Diagnosaurus® DDx

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

Pharma AI

All ratings5 ratings
Positive60.0%
Neutral0.0%
Negative40.0%

Bugs and 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

Pharma AI

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

Diagnosaurus® DDx

One-time1
  • Diagnosaurus DDx$4.99
2 purchases

Pharma AI

Subscriptions2
  • Premium$7.997 Days
  • Premium Pro$24.991 Month

Questions

Is Diagnosaurus® DDx free?
Diagnosaurus® DDx is free to download, with in-app purchases available.
Is Pharma AI free?
Pharma AI costs $0.99, and also offers in-app purchases.
Which has better reviews, Diagnosaurus® DDx or Pharma AI?
Diagnosaurus® DDx is rated higher. Diagnosaurus® DDx averages 4.8 out of 5 from 2.5K ratings, while Pharma AI averages 3.4 from 5 ratings.
Do Diagnosaurus® DDx or Pharma AI have ads?
Neither Diagnosaurus® DDx nor Pharma AI shows ads.
Which is updated more often, Diagnosaurus® DDx or Pharma AI?
Diagnosaurus® DDx ships an update every 10 months, and Pharma AI every 6 weeks. Most recently, Diagnosaurus® DDx was updated on October 30, 2026 and Pharma AI on October 30, 2026.

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