Comparison

DiagnosUs vs StepwiseMD

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

DiagnosUs

Engage with real medical cases to enhance your diagnostic skills and earn rewards. This educational game is designed for students and professionals to test their knowledge across various specialties and contribute to AI research.

Highlights
  • Analyze diverse medical cases
  • Improve diagnostic skills
  • Earn rewards for participation
  • Contribute to AI research
  • Study for medical exams
  • Regularly updated datasets
Read full description

DiagnosUs is an educational game for medical students, doctors, premed students, other healthcare professionals, and citizen scientists to analyze medical cases, improve their skills, and earn prizes! Participation is open to anyone, regardless of educational background. Players compete against their peers to hone their skills by analyzing cases in our datasets. At the same time, they contribute their knowledge to help advance artificial intelligence research. DiagnosUs is a wonderful supplement for classes, clerkships, and in preparation for exams such as the USMLE® Step 1 & 2 Clinical Knowledge (CK), NBME® exams, MBBS, NCLEX® exams, COMLEX Level 1 & 2, MCAT®, NEET-PG, and many more! The app promotes an engaging, dynamic platform to test anyone’s medical knowledge while simultaneously contributing to the development of crucial machine learning algorithms. Try a wide range of cases in subjects such as radiology, dermatology, USMLE® preparation, MCAT® preparation, NBME® preparation, NCLEX® preparation, ultrasound, neurology, cardiology, ophthalmology, emergency medicine, surgery, internal medicine, pediatrics, orthopedics, family medicine, gastroenterology, pathology, and pulmonology. Utilize the power of DiagnosUs to study interactively! New datasets are added regularly, so players can always keep learning! Learn medicine fast: see a wide range of cases! - Anatomy - Physiology - Auscultation to listen for pulmonary abnormalities - Dermatological images to identify melanoma, basal cell carcinoma, squamous cell carcinoma, psoriasis, dermatitis, and other skin conditions - EEG - EKG / ECG - USMLE® practice questions - MCAT® practice questions - NBME® practice questions - Chest X-rays to look for pneumonia and cancer - Musculoskeletal X-rays - Ultrasound identification problems - Fundus eye images - MRI - Whole Slide Pathology Imagery - Chest CT - Mammograms and much more! The rewards that participants can earn in the app are made possible by our research partners and customers, who are developing artificial intelligence related to image analysis. These research partners and customers subsidize our prizes because our app participants help analyze images from large datasets of our research partners and customers. After participants win rewards, they can tap on the Profile tab and tap on the icon in the top-left corner of the Profile screen. This screen then shows a log of all the participant's rewards, and they can withdraw their rewards to a payment account.

About

StepwiseMD

Features
Read full description

StepwiseMD brings together the reference material and study tools that medical students actually need — without the clutter. The question bank covers core clinical topics with detailed answer explanations, not just a right/wrong verdict. The drug reference pulls from structured databases so you can look up monographs, dosing, and interactions without switching apps. Lectures are organized by subject so you can go deep on a topic rather than bouncing around. Flashcards handle the memorization work. Notes and highlights let you annotate as you go. Everything is in one place, requires a login, and syncs to your account. No ads, no freemium tricks. Content is for educational and reference purposes only — not a substitute for clinical judgment.

Screenshots

DiagnosUs4 screens
StepwiseMD4 screens

Verdict

The call

DiagnosUs and StepwiseMD are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

DiagnosUs ships an update fortnightly, StepwiseMD every 10 days. The most recent releases landed on October 22, 2026 and October 9, 2026 respectively.

ScorecardNo meaningful differences
DiagnosUs versus StepwiseMD: the parameters behind the verdict, then further details
ParameterDiagnosUsStepwiseMD
PriceFreeFree
Rating4.8 (1K ratings) — better—
Positive reviews79.4% of reviews—
Number of ratings1K — better—
Update frequencyFortnightlyEvery 10 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.015.0 — better
Further details — not scored
Size42 MB43 MB
Age rating17+17+
DeveloperCentaur LabsMuhammad Saim Hassan

Bugs and requests

DiagnosUs

Reported bugs

4 issues
  • App crashes and freezes
  • Inaccurate or inconsistent grading of answers
  • Withdrawal and payment issues for some users
  • Compatibility problems with certain devices and OS versions

Requested features

5 requests
  • More diverse medical topics and case studies
  • Separate competitions for students vs. professionals
  • Ability to discuss and provide feedback on cases
  • Improved instructions and explanations
  • Compatibility with older devices and iOS versions

StepwiseMD

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

DiagnosUs

No in-app purchases

None

StepwiseMD

No in-app purchases

Questions

Is DiagnosUs free?
DiagnosUs is free to download, with no in-app purchases.
Is StepwiseMD free?
StepwiseMD is free to download, with no in-app purchases.
Do DiagnosUs or StepwiseMD have ads?
Neither DiagnosUs nor StepwiseMD shows ads.
Which is updated more often, DiagnosUs or StepwiseMD?
DiagnosUs ships an update fortnightly, and StepwiseMD every 10 days. Most recently, DiagnosUs was updated on October 22, 2026 and StepwiseMD on October 9, 2026.

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