DiagnosUs is an app where you can compete with medical students, doctors, and other healthcare professionals to analyze medical images and win cash prizes while improving your skills. Learn and compete with others for cash prizes as you help us improve the future of medicine.

If you’re interested in viewing a wide range of cases and winning cash prizes while improving your diagnostic skills, this app is for you. You can participate even if you’re not a medical student, medical resident, or medical doctor, but the app is most appealing to pre-medical students, medical students, medical residents, radiology technicians, other medical technicians, registered nurses, nurse practitioners, physician assistants, doctors of osteopathic medicine, and medical doctors.

You can practice on a wide range of cases so DiagnosUs is for people interested in specialties like radiology, dermatology, ultrasound, neurology, cardiology, ophthalmology, emergency medicine, surgery, internal medicine, pediatrics, orthopaedics, family medicine, gastroenterology, pathology, and pulmonology.

On the app you might see a wide range of case types like:
- Dermatological images to identify melanoma, basal cell carcinoma, squamous cell carcinoma, psoriasis, dermatitis, and other skin conditions
- USMLE practice questions
- Chest X-rays to look for pneumonia, tuberculosis, lung cancer, and other abnormalities
- Musculoskeletal X-rays
- Ultrasound to identify issues in gall bladders or identify whether a fetus is male or female
- Fundus eye images to identify diabetic retinopathy
- Pathology
- Chest CT
- Mammograms
- and more!

What’s New

Version 3.24.0

- Improvement to new-user experience

Ratings and Reviews

4.8 out of 5
215 Ratings

215 Ratings

HamSalesman ,


I downloaded this app somewhat suspicious (because getting money from an app just seems too good), but I am so absolutely floored by how much I love it. I’m not a med student, but I have a big interest in learning new things and boy oh boy does this app satisfy that. It’s a lot like a video game in the way it’s formatted, but I feel so much better spending my time on here than, say, wordscapes because I feel like I’m actually stimulating my brain. I love the simplicity of the app, it’s incredibly easy to use and VERY addictive. Before writing my review, I waited until I won a competition and received the money from it, but I am so so happy that this app checks out and isn’t a scam.

My only small complaint would be that sometimes the photos or scans I was shown in the competitions were inaccurately labeled, which can be really frustrating in a competitive setting. However, it’s totally understandable as a new app with a small, hardworking team.

Overall I am very very very satisfied with the app and I highly recommend trying it out if you have an interest in the medical sciences.

Developer Response ,

Thanks so much for the review and we're glad you are enjoying the app! We appreciate the feedback -- it helps us figure out what to improve and what to build next.

Nuclear Gal ,

Love This App

I previously wrote a 4-star review due to some issues with the training zones for certain topics and because I felt users’ feedback on cases wasn’t being listened to. The DiagnosUs team actually made changes to the app based on my review, which is something you don’t see often. I also left feedback within the app about some inappropriate images I’d come across in one of the contests and they responded ASAP and now users are warned of this issue before starting. I do still find the responses to cases being flagged as incorrect a bit frustrating, but I understand the app is monitored by a small team and can’t get to everything right away.

Also, I have made quite a decent chunk of money from this app - $200+ in the last week or so. It’s so much fun! Can’t wait to see what new contests DiagnosUs comes up with next.

Developer Response ,

Thank you!! It's very rewarding for our team to see reviews like this. Feedback from users like you is crucial for us to figure out what to change and what to build next! :)

dontlistentothepaidreviews ,

Definitely worth downloading

Naturally, I’ve always been suspicious of apps that promise cash rewards for contest winnings. Diagnosus, however, is a legitimate business that applies machine learning to science/ medicine. While I obviously don’t make a full-time salary from the app, I’ve found it to be a great way to add some cash to my pocket (especially when quarantined at home!) It’s also a useful learning tool for those interested in medicine; for example, I’ve gotten pretty good at identifying benign vs malignant skin lesions. I definitely owe a lot of thanks to the developers of the app, hence my positive review (which is long overdue). Keep up the good work!

Developer Response ,

Thank YOU! Please don’t hesitate to reach out whenever you have suggestions for new features, topics, or anything else—we would love to hear from you :)


32.7 MB

Requires iOS 12.0 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating
Gambling and Contests
Infrequent/Mild Medical/Treatment Information


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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