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Diagnosaurus DDx icon
GOOGLE PLAY

Diagnosaurus DDx

Unbound Medicine, Inc · Medical · United States store
NOT IN TOP 100 HERE
View on Google Play ↗ Instagram card App Store version →
Revenue a month, worldwide EST
$1.2K
Likely $395 to $3.6K
New ratings
Tracking
Daily counts start building from today
Rating
4.9 of 5
1K ratings in this store
Countries it ranks in
0
was 0 on Oct 15, 2026

Revenue

Estimated from the grossing charts of Oct 21, 2026 in the 53 countries we track, and ratings growth on the App Store.

EST. REVENUE / YEAR · WORLDWIDE
$14.2K
23 new ratings a month on average since launch
LIFETIME INSTALLS (GOOGLE)
74.6K
About 532 per month on average since launch
WHERE ITS USERS ARE · SHARE OF RATINGS
  • United States 2.5K ratings71%
  • Canada 421 ratings12%
  • Brazil 98 ratings3%
  • Japan 95 ratings3%
  • Netherlands 88 ratings2%
  • Mexico 68 ratings2%
  • Australia 48 ratings1%
  • United Kingdom 42 ratings1%
HOW SURE ARE WE
Not in any grossing chart, so this comes from ratings growth (23 new ratings a month on average since launch): revenue grows with new ratings, more slowly for apps that collect ratings fast. Tested on 418 apps with verified revenue: typically off by about 2 times, and big earners tend to come out low. Countries we don't track (and Google Play in China, which doesn't exist) aren't included, and neither are ads or web payments. Gross revenue before store fees.
RATINGS
1K
AVG RATING
4.91
PRICE
Free
IN APP PURCHASES
$4.99 per item
CONTAINS ADS
No
LAST UPDATE
233d ago
RELEASED
Feb 19, 2015
CONTENT RATING
Everyone

Last 29 days

From our daily snapshots of every grossing chart.

DAYS IN A GROSSING CHART
0 / 29
COUNTRIES NOW
0 (was 0)
EST. REVENUE FROM CHARTS, DAILY · BOTH STORES ONLY EST
Show daily values
Sep 24, 2026not in a grossing chart
Sep 25, 2026not in a grossing chart
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Sep 30, 2026not in a grossing chart
Oct 1, 2026not in a grossing chart
Oct 2, 2026not in a grossing chart
Oct 3, 2026not in a grossing chart
Oct 4, 2026not in a grossing chart
Oct 5, 2026not in a grossing chart
Oct 6, 2026not in a grossing chart
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Oct 8, 2026not in a grossing chart
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Oct 10, 2026not in a grossing chart
Oct 11, 2026not in a grossing chart
Oct 12, 2026not in a grossing chart
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Oct 14, 2026not in a grossing chart
Oct 15, 2026not in a grossing chart
Oct 16, 2026not in a grossing chart
Oct 17, 2026not in a grossing chart
Oct 18, 2026not in a grossing chart
Oct 19, 2026not in a grossing chart
Oct 20, 2026not in a grossing chart
Oct 21, 2026not in a grossing chart
Oct 22, 2026not in a grossing chart
Best rank Sep 24, 2026: not ranked. Now: not ranked. Days at zero are days outside every grossing chart.

Money and momentum

Measured from the store, not estimated.

WHAT IT CHARGES
$4.99 per item
Google Play only shows the price range per item.
REVIEW MOMENTUM
0.2 reviews / week
  • Trendfalling
  • Recent reviews average3.7 stars
  • Recent 1 and 2 star share27%
From the latest 109 written reviews, covering 4245 days.
RATING BREAKDOWN
1K ratings
5★92%
4★7%
3★1%
2★0%
1★0%

What users want

From the latest 109 reviews on the United States Google Play, Mar 9, 2015 to May 11, 2026: 27% are 1 or 2 stars. Open a theme to read what people wrote.

WHAT THEY COMPLAIN ABOUT · SHARE OF BAD REVIEWS
Price and subscription24%

7 of the 1 and 2 star reviews.

★★★★★ Why not giving a full trial version before buying??
★★★★★ Dont waste your money or time on this.
★★★★★ I will try some, but it is getting to a point where i will be asking for a refund
Worse after an update17%

5 of the 1 and 2 star reviews.

★★★★★ 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…
★★★★★ always crashes after latest update
★★★★★ It's fairly inappropriate as well as unprofessional to have a customer purchase your product, then say the software is outdated, and then put it on the customer to have to find out on their own that they can't update…
Limits, credits, locked features14%

4 of the 1 and 2 star reviews.

★★★★★ 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…
★★★★★ And now I need to pay again for the updated version?
★★★★★ Why do I have to pay for it if I paid for it once before.
Bugs, things not working7%

2 of the 1 and 2 star reviews.

★★★★★ Shortly after installing and paying for the app it stopped working, not allowing me to register.
★★★★★ The app just doesn't work anymore.
Login and account problems7%

2 of the 1 and 2 star reviews.

★★★★★ 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.
★★★★★ First screen asks for sign in or purchase.
No customer support7%

2 of the 1 and 2 star reviews.

★★★★★ The customer service team have been unhelpful and repeated that I should repurchase the app on the play store however they don't seem to be aware that I cannot seem to do this.
★★★★★ Since my initial purchase this is the second time I have had to contact support.
WHAT THEY ASK FOR
  • I wish I would found it before. 5★, Nov 10, 2018
  • I wish I had listened to the reviews before purchasing this horribly unreliable app. 2★, Oct 30, 2018
  • This is a great app for medical students whenever they are in the clinic or hospital and need a refresher for a quick differential based on chief complaint. 5★, Mar 9, 2015
WORDS THAT KEEP COMING UP IN BAD REVIEWS

Nothing stands out.

WHAT THEY LOVE · SHARE OF GOOD REVIEWS
Useful, it helps21%

15 of the 4 and 5 star reviews.

★★★★★ it helps round out the differential for things I don't see all the time!
★★★★★ Useful, but there is not much information
★★★★★ One of the most useful app I have ever used.
Fast10%

7 of the 4 and 5 star reviews.

★★★★★ It's quick, updates are prompt, and a good concise clinical bedside companion.
★★★★★ Useful app, and very fast and efficient customer support!
★★★★★ Provides a quick list of differential diagnoses that are categorized well, all based on a sign/symptom.
Easy to use5%

4 of the 4 and 5 star reviews.

★★★★★ Simple, straightforward, and comprehensive...just what we need!
★★★★★ Love this product with easy access to ddx.
★★★★★ Simple and easy to navigate, good list of differentials.
Great support5%

4 of the 4 and 5 star reviews.

★★★★★ Useful app, and very fast and efficient customer support!
★★★★★ Initally asked for payment, but when i contact the customer service the issue was resolved promptly n was able to use the app without any new payment.

Found by matching words and phrases in the reviews, not read by a person. A review can count toward more than one theme.

What users say

Latest reviews, United States Google Play.

★★★★★May 11, 2026

Leads me the right questions

★★★★★Jun 30, 2025

Why not even a word is mentioned about “COVID” Not a word is mentioned of COVID

★★★★★Feb 12, 2025

Best app for medical students and budding physicians

★★★★★Nov 27, 2024

it helps round out the differential for things I don't see all the time!

★★★★★Apr 10, 2024

I love you!

★★★★★Jul 13, 2023

missing ibs as a dx

Store screenshots

ScreenshotScreenshotScreenshotScreenshotScreenshotScreenshotScreenshotScreenshotScreenshotScreenshot

App Store ads

Apple Search Ads this app ran in the last 90 days, from Apple's public ad repository.

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Growth research

Where this app is buying and earning its users. Each link opens pre filtered.

Meta Ad Library ↗Active Facebook and Instagram adsTikTok Creative Center ↗Top performing TikTok adsTikTok creators ↗Organic videos mentioning the appInstagram ↗Reels and posts under its hashtagYouTube ↗Reviews, tutorials and ShortsDeveloper site ↗Landing page and pricing

ASO keywords

Most repeated terms in the listing. Highlighted ones also appear in the title or short description.

diagnoses6entries5perform differential3differential diagnoses3quick read3organ system3see related3related ddx3differential3quick3ddx3professionals2preview2view2perform2fast2read2links2diagnosaurus2quickly2search2organ2system2symptom2

What's new in 2.8.52

* Bug fixes * Billing Library 8.3.0 support

Store description

** 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

See this store page in another country

Prices, ranks and reviews are per country. Revenue above is already worldwide.

United KingdomGermanyJapanBrazilIndia

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