Comparison

DiagnosUs vs Plif Tutor

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

Plif Tutor

This app offers a unique learning experience through interactive content. It focuses on making education engaging and accessible for users of all levels. Discover new ways to learn and expand your knowledge base.

Highlights
  • Interactive learning content
  • AI-powered tutoring
  • Personalized learning paths
  • Progress tracking
  • Subscription-based access
Features
Read full description

——— Plif Pro is an auto-renewing subscription. • Pro Monthly — $12.99/month • Pro Yearly — $89.99/year Payment is charged to your Apple Account at purchase confirmation. Your subscription automatically renews unless canceled at least 24 hours before the end of the current period. Manage or cancel anytime in your Apple Account settings. Terms of Use (EULA): https://plif.app/ai2tor/terms Privacy Policy: https://plif.app/ai2tor/privacy

Screenshots

DiagnosUs4 screens
Plif Tutor4 screens

Verdict

The call

The clearest difference is in-app purchases: DiagnosUs at none against Plif Tutor's 2. DiagnosUs also leads on ratings volume (1K vs 2) and iOS requirement (16.0 vs 18.6). Plif Tutor's advantage is update cadence (every 2 days vs fortnightly) and review sentiment (100% vs 79%). On price, ads and device support there is nothing between them.

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. Plif Tutor sells 2 in-app purchases, starting at $12.99 per month. DiagnosUs asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Plif Tutor holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: DiagnosUs has 1K ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 79% of DiagnosUs's written reviews are positive against 100% of Plif Tutor's.

UpkeepUpdate frequency

DiagnosUs ships an update fortnightly, Plif Tutor every 2 days. The most recent releases landed on November 2, 2026 and October 31, 2026 respectively.

Scorecard7 real differences · 3 level
DiagnosUs versus Plif Tutor: the parameters behind the verdict, then further details
ParameterDiagnosUsPlif Tutor
PriceFreeFree
Rating4.8 (1K ratings)5.0 (2 ratings) — better
Positive reviews79.4% of reviews100.0% of reviews — better
Number of ratings1K — better2
Update frequencyFortnightlyEvery 2 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree with in-app purchases — betterSubscription
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.0 — better18.6
Further details — not scored
Size42 MB16 MB
Age rating17+12+
DeveloperCentaur LabsFortunatus Inyang

Customer experience

DiagnosUs

All ratings1,014 ratings
Positive94.4%
Neutral1.9%
Negative3.7%
Written reviews228 reviews
Positive79.4%
Neutral10.1%
Negative10.5%

Plif Tutor

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

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

Plif Tutor

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

DiagnosUs

No in-app purchases

2 purchases

Plif Tutor

Subscriptions2
  • Pro Monthly$12.991 Month
  • Pro Yearly3 Days trial$89.991 Year

Questions

Is DiagnosUs free?
DiagnosUs is free to download, with no in-app purchases.
Is Plif Tutor free?
Plif Tutor is free to download, with in-app purchases available.
Which has better reviews, DiagnosUs or Plif Tutor?
Plif Tutor is rated higher. DiagnosUs averages 4.8 out of 5 from 1K ratings, while Plif Tutor averages 5.0 from 2 ratings.
Do DiagnosUs or Plif Tutor have ads?
Neither DiagnosUs nor Plif Tutor shows ads.
Which is updated more often, DiagnosUs or Plif Tutor?
DiagnosUs ships an update fortnightly, and Plif Tutor every 2 days. Most recently, DiagnosUs was updated on November 2, 2026 and Plif Tutor on October 31, 2026.

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