Diagnosaurus® DDx vs The Clinical Problem Solvers
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
Read full descriptionHide 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
The Clinical Problem Solvers
Access expert diagnostic reasoning tools, including schemas, illness scripts, and practice cases. Save content for offline use, quickly link to explanation videos and podcast episodes, and stay updated with new materials added monthly. Share resources with colleagues.
- Browse schemas and illness scripts
- Access practice cases and videos
- Save documents for offline access
- Link to podcast episodes
- Stay updated with new content
- Share resources
Read full descriptionHide full description
This is the official companion app to the Clinical Problem Solvers podcast, you would be able to: - Browse schemas, illness scripts, practice cases, videos, and blog posts crafted by the Clinical Problem Solvers team - Save all documents for offline access - Quickly access the explanation video and podcast episode associated with each schema - Stay updated with newer versions of schemas - Share the documents with your friends and colleagues We are adding 4 to 5 new schemas and illness scripts per month as part of our ongoing podcast episodes. This app is closely tied to what is discussed on each podcast episode, and not meant as a comprehensive reference. For a taste of what is in the app, please check out our podcast! The name of our podcast is "The Clinical Problem Solvers". URL at: https://apple.co/2m4cIT2 Our website: https://clinicalproblemsolving.com/ Twitter handle: @cpsolvers
Screenshots
Verdict
The clearest difference is price: Diagnosaurus® DDx at Free against The Clinical Problem Solvers's $14.99. Diagnosaurus® DDx also leads on ratings volume (2.5K vs 204). The Clinical Problem Solvers's advantage is review sentiment (90% vs 53%) and in-app purchases (none vs 1). On rating, ads 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
Diagnosaurus® DDx is free to download; The Clinical Problem Solvers costs $14.99 up front. Diagnosaurus® DDx sells 1 one-off in-app purchase. The Clinical Problem Solvers asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 4.8 for Diagnosaurus® DDx against 4.8 for The Clinical Problem Solvers. That said, the two scores are not equally well evidenced: Diagnosaurus® DDx has 2.5K ratings behind it against 204, so its average is the more settled of the two. Written reviews are what separate them: 53% of Diagnosaurus® DDx's written reviews are positive against 90% of The Clinical Problem Solvers's.
Diagnosaurus® DDx ships an update every 10 months, The Clinical Problem Solvers every 2 months. Both last shipped on October 29, 2026.
| Parameter | Diagnosaurus® DDx | The Clinical Problem Solvers |
|---|---|---|
| Price | Free — better | $14.99 |
| Rating | 4.8 (2.5K ratings) — better | 4.8 (204 ratings) |
| Positive reviews | 53.2% of reviews | 90.1% of reviews — better |
| Number of ratings | 2.5K — better | 204 |
| Update frequency | Every 10 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Best chart rank | — | #97 — better |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 8.0 — better |
| Further details — not scored | ||
| Size | 19 MB | 32 MB |
| Age rating | 17+ | 17+ |
| Developer | Unbound Medicine, Inc. | THE CLINICAL PROBLEM SOLVERS INC. |
Customer experience
Diagnosaurus® DDx
The Clinical Problem Solvers
User reviews
Diagnosaurus® DDx
From 2.5K App Store ratingsWhat we love
- 👍 User-friendly interface
- 🚀 Quick access to differential diagnoses
- 💡 Helpful for building differential diagnoses
- 👍 Comprehensive coverage of conditions
- 👍 Useful for medical students and practitioners
Room to improve
- 🐛 Lack of in-depth information
- 🐛 Incomplete differential diagnoses
- 🐛 Lack of links to explain conditions
- 🐛 Requires in-app purchase to access full content
- 🐛 Unreliable update mechanism
The Clinical Problem Solvers
From 204 App Store ratingsWhat we love
- 💡 Excellent diagnostic frameworks and schemas
- 🎯 Highly useful for clinical reasoning and differential diagnosis
- 👍 Easy to navigate and user-friendly interface
- 🚀 Quick access to information with minimal clicks
- 📱 Offline functionality without premium paywall
Room to improve
- 📉 Limited number of diagnoses and topics covered
- 🔍 Search functionality needs improvement
- ❌ Not updated regularly with new schemas
- 📱 Technical issues on certain devices (iPad compatibility)
- ❓ Schemas sometimes too vague without podcast context
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
The Clinical Problem Solvers
Reported bugs
5 issues- App doesn't work properly on iPad 5
- Download all feature doesn't function
- Search function not working
- Content not displaying under illness scripts and practice cases sections
- App crashes or freezes on certain devices
Requested features
7 requests- Expand library with more diagnostic schemas
- Improve search functionality
- Add more content for internal medicine and internists
- Include podcast episodes within the app
- Regular updates with new schemas
Show 2 moreShow fewer
- Add more practice cases
- Expand content for specialty areas
In-app purchases
Diagnosaurus® DDx
- Diagnosaurus DDx$4.99
The Clinical Problem Solvers
No in-app purchases
Questions
Is Diagnosaurus® DDx free?
Is The Clinical Problem Solvers free?
Which has better reviews, Diagnosaurus® DDx or The Clinical Problem Solvers?
Do Diagnosaurus® DDx or The Clinical Problem Solvers have ads?
Which is updated more often, Diagnosaurus® DDx or The Clinical Problem Solvers?
Other comparisons
