Mobile Apps & Resources: Prognosis: Your Diagnosis


To keep you updated on the go, our ‘app of the month’ highlights one free informational app every month!


Librarian reviewers consider the audience and purpose of the apps, as well as highlighting additional features:
  • In the ‘Evidence’ section, we assess how easily an app user can identify the app’s currency and support from the evidence
  • In the ‘Usability’ section, we assess the organization of information and other usability factors that may contribute to user experience

Our complete grading criteria for evidence and usability are embedded in the review.

Please note that the reviewers are not healthcare professionals, and so cannot appraise the quality of any recommendations within the app. The reviews are not endorsements.

View the AHS policy on Mobile Wireless Devices and Services.


Prognosis: Your Diagnosis

Prognosis: Your Diagnosis

Versions reviewed

5.0.21 Android 
5.1.11 iPad & iPhone

Device & OS used

Android: 1.0.13 
iPad Mini 3 iOS 12.5.1

Date of review

February 23, 2021 (LF)
February 18, 2021 (RZ)

Reviewers Lance Fox (SHA)
Rachel Zhao (AHS)
Technician Support  Melanie Belliveau

Image Source: Prognosis: Your Diagnosis, Apple App Store. Retrieved on March 2, 2021 from:

Stated Purpose  

“With Prognosis, you can improve your ability to diagnose and immediately manage key clinical presentations associated with a disease, having access to relevant facts and succinct explanations behind the underlying diagnostic and management rationale.

Prognosis is designed for practicing physicians, medical students, nursing professionals and other healthcare practitioners who love medicine and want to thrive as world-class decision makers. After all, practice makes perfect; and practice can be fun!

Our catalog spans a wide range of medical specialties, all which can be played in minutes. Each case is also accompanied by a concise yet comprehensive discussion of the diagnostic reasoning, as well as and key learning points for you to take home.

Prognosis cases are based on the actual clinical experiences of more than 200 physicians across 33 specialties.

New cases are released regularly, often in keeping with global endemic and epidemic trends, to help you brush up on the clinical skills that are the need of the hour!”





Image Source: Prognosis: Your Diagnosis, Apple App Store. Retrieved on March 2, 2021 from:


33 different specialties
Physicians, medical students, nursing professionals and other healthcare practitioners




Part 1: Editorial committee, content updates, and evidence grading

No specific author information such as names or contact information is provided within the app. However, the contact information for Medical Joyworks and the names and credentials of the individual team members can be found on the Medical Joyworks website. Some of these physicians clearly take time to respond to the comments and questions that are posed at the end of some of the cases in the app. Each case includes a date of creation and indicates the date each reference was viewed. No grading system is used.

Part 2: Source and authorship information for 3 entries

Reference lists are provided with non-clickable URL’s linking to the original articles. In-text citations are not available. Various types of studies are included such as guidelines, randomized trials, and review articles. Author information is not included in the app for each individual case. However, we know who the team members are for Medical Joyworks and we even see some of them interact with other users in the comments section of each individual case.

Organization of information

The home screen displays a few options to select:

Play Cases: Practice your diagnostic skills by selecting and playing an individual case scenario. Then see your score to see how well you did and see the explanation of the diagnosis and reasoning  and reference list to learn more. You can replay the cases as many times as you like and save them to your list of favourites.

Progress: The percentage of cases for each specialty that you have completed so far.

Edit Profile: Edit your personal information and choose if you want to receive promotional email updates.

Languages & Settings: Choose the language you want the cases to display in (English, French, Spanish, Portuguese, Italian) and select whether you want to jump directly to the explanation for the cases you’ve already played or not.

Invite Friends: Share the app with friends by email, instant messaging, social media, etc.

Mailbox icon: This opens up messages about latest updates from the app developers. It currently just shows a message promoting the app Clinical Odyssey.

Other apps by Medical Joyworks are also listed at the bottom of the home screen.


You have to select a case to play, then as you navigate through the case, select which investigations and relevant management options you want to perform on the patient after reading about the patient and scenario. Then you will be provided with a score (highest score equals 3 stars) and you can see which responses were correct and incorrect, followed by an explanation of the diagnosis and reasoning, and list of references. Comments and questions between other users and the app developers are also provided.


User Account require: No

Internet connection required for use: No

Text search field: No 

Browsable content: Yes 

Advertisements: Yes

Pop-up advertisements: No

In-app purchases: No


Compatible with iPhone, iPad, and iPod Touch. Requires iOS 10.0 or later.
Last updated (as per App store listing): July 23, 2020

Compatible with Android smartphones and tablets. Requires Android OS 4.4 and up.
Last updated (as per Google Play listing): February 6, 2021

App Store listing: 64 MB (iOS) (Apple)
Google Play listing: 19 MB (Android)
App Developer
Medical Joyworks LLC
Country of Origin

4023 Kennett Pike #55630
Wilmington, DE 19807  USA

Phone: (+1) (310) 919-4287