Diagnosaurus DDx
Quick-reference tool for differential diagnosis for all healthcare professionals
Last 30 days
Last 30 days
Avg per download
1K reviews
Last 30 days
Last 30 days
Avg rev. per download
1K reviews
Performance Insights
Competition level
Low competitionUnder 100K on both downloads and revenue — the kind of niche a small team can still take.
On the store
Released February 2015 · 17 releases since
Diagnosaurus DDx is an Android app (Free) by Unbound Medicine, Inc in the mobile app category. It holds a 4.9-star rating.
- Ships new versions a few a year.
- Latest version is 2.8.52, released March 3, 2026.
- 92% of ratings are five-star.
- Strongest in US, NL, CA.
- Requires Android 9+.
- Rated Everyone.
App details
- Version
- 2.8.52
- Release status
- Regional release
- Age rating
- Everyone
- Requires
- Android 9+
- Price
- Free
- First seen
- February 2015
- Top markets
- US, NL, CA
- Publisher country
- US
- Website
- Visit website
- Support
- Visit support
Release history
17 versions tracked
- Version 2.8.52Latest
- Version 2.8.47
- Version 2.8.38
- Version 2.8.21
- Version 2.8.08
- Version 2.7.95
- Version 2.7.80
- Version 2.7.75
- Version 2.7.70
- Version 2.7.54
- Version 2.7.52
- Version 2.7.37
Ships a few a year.
What users say
- 2.0
Very irritating. As other reviewers mentioned, after paying for the app and using it for a short period of time, I've had issues signing in. New updates forcing me to re download the app and saying that I am not registered despite doing this in the past. Definitely not worth the money. I wish I had listened to the reviews before purchasing this horribly unreliable app.
Reviewed on version 2.7.37
- 1.0
Worst experience using a medical app. Since my initial purchase this is the second time I have had to contact support. First time I was forced to create an unbound account then said account expired in 2019 (why?!) And now I'm stuck having to ask them to fix this again. What a HASSLE. The tool is good but the service is the worst. They try to get you to but it again and again, of course it would be easier to pay 6 bucks again and not have to deal with them.
Reviewed on version 2.7.80
- 1.0
These people are thieves, I bought this app a long time ago and when they decided to update it, they locked many people out and pretend that we must download the older version coz this version is different, and that its not their problem if we can't find it but Google's problem.
Reviewed on version 2.7.79
About Diagnosaurus DDx
1,254 characters
** Top-Selling App Used by Tens of Thousands of Health Professionals, Worldwide **
Preview, Buy, or Sign In using this app.
FREE PREVIEW – View select topics and discover how you can perform differential diagnoses fast using the quick-read entries and links to alternate diagnoses.
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 • 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
Diagnosaurus DDx Android app is available. The app maintains a 4.9-star rating based on 1K user reviews, indicating strong user satisfaction in the mobile app market.
Diagnosaurus DDx Android app competes actively in the mobile app category.
You can download Diagnosaurus DDx Android app from the Google Play Store for Android devices, requiring Android 9 or later. The app offers in-app purchases for enhanced functionality.
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