Comparison

VisualDx vs Top Derm

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

Head to head
About

VisualDx

This visual reference tool aids medical professionals in improving patient engagement and diagnostic accuracy. It utilizes AI and a vast image atlas to help build custom differentials, share patient-specific images, and access comprehensive diagnostic information. Earn continuing education credits while making better medical decisions.

Highlights
  • Build custom differentials
  • Engage patients with visual aids
  • Improve diagnostic accuracy
  • Access therapy and test options
  • Recognize infectious diseases
  • Earn CME credits
Currently charting
Read full description

VisualDx is a visual reference tool for medical professionals that leverages AI technology and a comprehensive image atlas to support faster, more confident decisions, fewer unnecessary referrals and testing, and higher patient engagement and satisfaction. With VisualDx, clinicians can: • Build dynamic differentials that evolve as you think. • Use guided support to surface clinically relevant results. • Compare diagnoses to improve decisions for your patients. • Use our AI to take a picture of your patient’s skin condition to better understand morphology and possibilities. • Engage with patients by sharing pictures of skin that reflect their disease presentation. • Access therapy and testing recommendations across over 3,500 conditions. • Quickly recognize infectious diseases and travel-related illnesses with our public health resources. • Test your diagnostic skills with our image challenges and educational resources. • Earn 0.5 AMA PRA Category 1 Credits™ for internet point of care activity with every search. See why this award-winning clinical decision support system is being used in more than 2,300 hospitals, clinics, and medical schools by physicians, nurses, students, PAs, NPs, and other healthcare professionals worldwide. VisualDx requires a subscription. Terms of Use: https://www.visualdx.com/legal/acceptable-use-policy-notice Privacy Policy: https://www.visualdx.com/legal/privacy-policy/

About

Top Derm

This game is designed for dermatologists by dermatologists, offering a fun and challenging way to learn and identify skin disorders. It features medically accurate imagery and neuroscience-based game mechanics to enhance knowledge retention.

Highlights
  • Medically accurate derm imagery
  • Neuroscience-based game mechanics
  • Earn CME credits
  • Wide variety of dermatology topics
  • Customizable topic selection
  • High-resolution imagery with zoom
  • Personal expertise tracking
Features
Read full description

A GAME MADE JUST FOR DERMATOLOGISTS Top Derm is made by derms for derms. We worked with over 140 derm experts to create a medically accurate, fun, and challenging experience, unlike any other medical resource you’ve ever seen. Top Derm is a first-of-its-kind mobile game made by dermatology experts for dermatologists. Covering a wide variety of dermatology topics, Top Derm is packed with incredible, medically accurate, computer-generated derm imagery, in quick-burst challenges pulled from evidence-based research. Built on neuroscience-based game mechanics, Top Derm is a unique medical resource that also happens to be a ton of fun. DERM IMAGERY LIKE YOU HAVE NEVER SEEN BEFORE Our dermatologist-approved, groundbreaking DeepSkinFX™ Generator harnesses the most cutting-edge visual effects and video game technology to create mind-blowing, medically accurate, high-resolution imagery of any skin disorder on any region of the body and any skin tone, so you can visually experience a wide variety of derm scenarios. FROM ADULT DERMATOLOGY TO ZEBRA CASES AND BEYOND Short, rapid-fire, focused challenge packs deliver well-rounded dermatology challenges that strengthen your derm knowledge and your ability to visually identify common and rare skin disorders. NEUROSCIENCE MEETS ENTERTAINMENT ON THE GO Top Derm is backed by neuroscience-based game mechanics that help you acquire and retain knowledge. It’s also a ton of fun and ready to go on your phone at any time. So whether you’re between patients, on a lunch break, or just sitting down to relax, Top Derm is waiting for you. FEATURES EARN CME CREDITS Finding the time and opportunity to earn CME credits can be challenging. We make it easy, convenient, and fun. A WIDE VARIETY OF SUBJECTS Challenges cover a breadth of topics: skin cancer, pediatric dermatology, adult dermatology, cosmetic dermatology, and surgical dermatology. New challenge packs are released regularly. CHOOSE YOUR TOPICS Gameplay is customized to your interests. Choose your favorite topics, and you’ll be presented with more challenges covering those areas. SKIN OF COLOR Skin tone affects the appearance of different disorders. Our DeepSkinFX™ Generator creates medically accurate imagery showcasing conditions on different skin types so you can view conditions as they appear on various skin tones. TAKE A CLOSER LOOK All clinical imagery in Top Derm is included at high resolution for close-up study. Tap the magnifying glass at the corner of the image, and it expands to full screen. Pinch and spread to zoom in or out. It’s all in the details. PERSONAL EXPERTISE MAPS Track your performance with a dynamic report that shows your progress, areas of strength, and improvement opportunities. SUPPLEMENTAL READING Every challenge is built on evidence-based research. We’ve included the option to review that material at the end of each challenge. SHAPE THE GAME, HELP THE COMMUNITY Rate and give feedback on the challenges to help make the game as good as it can be and contribute to the state of the art in dermatology. BUILT BY LEADING DERMATOLOGY EXPERTS Our team of world-renowned dermatology experts includes Peter Lio, MD Dermatology, Medical Dermatology Associates of Chicago; Shraddha Desai, MD, FAAD, Director of Cosmetic and Laser Surgery, Dupage Medical Group Dermatology, Adjunct Professor of Dermatology, Loyola University; Aaron Fuchs, MD, Fuchs Dermatology; Sara Hogan, MD, Dermatology, Laser Skin Care Center Dermatology Associates; Dr. Sara Dickie, Plastic and Reconstructive Surgery, Illinois Dermatology Institute; and others.

Screenshots

VisualDx4 screens
Top Derm4 screens

Verdict

The call

The clearest difference is in-app purchases: Top Derm at none against VisualDx's 11. VisualDx's advantage is ads (none vs shown) and review sentiment (84% vs 60%). On price, rating, device support and iOS requirement 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. VisualDx sells 11 in-app purchases, starting at $39.99 per month. Top Derm asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.4 for VisualDx against 4.5 for Top Derm. Both are backed by a comparable volume of ratings — 186 and 59 respectively. Written reviews are what separate them: 84% of VisualDx's written reviews are positive against 60% of Top Derm's.

UpkeepUpdate frequency

VisualDx ships an update fortnightly, Top Derm every 6 weeks. The most recent releases landed on September 23, 2026 and June 1, 2026 respectively.

Scorecard7 real differences · 4 level
VisualDx versus Top Derm: the parameters behind the verdict, then further details
ParameterVisualDxTop Derm
PriceFreeFree
Rating4.4 (186 ratings)4.5 (59 ratings) — better
Positive reviews84.3% of reviews — better60.0% of reviews
Number of ratings186 — better59
Update frequencyFortnightly — betterEvery 6 weeks
AdsNo — betterYes
In-app purchasesYesNo — better
MonetizationSubscriptionFree with in-app purchases — better
Best chart rank#13 — better—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.415.0 — better
Further details — not scored
Size226 MB248 MB
Age rating17+12+
DeveloperLogical ImagesRelevate Health Group, LLC

Customer experience

VisualDx

All ratings186 ratings
Positive83.3%
Neutral4.8%
Negative11.8%
Written reviews102 reviews
Positive84.3%
Neutral1.0%
Negative14.7%

Top Derm

All ratings59 ratings
Positive86.4%
Neutral0.0%
Negative13.6%
Written reviews15 reviews
Positive60.0%
Neutral0.0%
Negative40.0%

Bugs and requests

VisualDx

Reported bugs

6 issues
  • App crashes when using quiz feature
  • CME credit claiming functionality fails
  • Subscription cancellation not processed
  • Renewal charges despite cancellation requests
  • Quiz unable to load properly
Show 1 more
  • Account access issues after payment

Requested features

6 requests
  • Make app free again (previously free)
  • Simplify subscription cancellation in-app
  • Improve quiz functionality for mobile
  • Add quiz feature to desktop version
  • Expand patient information handouts
Show 1 more
  • Better quiz image clarity and context

Top Derm

Not enough reviews yet to summarise bugs or requests.

In-app purchases

11 purchases

VisualDx

Subscriptions9
  • Complete (1 Month)1 Month trial$39.991 Month
  • VisualDx Core Monthly7 Days trial$39.991 Month
  • Complete+DermExpert (1 Month)1 Month trial$49.991 Month
Show 6 more
  • VisualDx Elite Monthly7 Days trial$49.991 Month
  • Add DermExpert (1 Year)$99.991 Year
  • Complete (1 Year)1 Month trial$149.991 Year
  • VisualDx Core Annual7 Days trial$249.991 Year
  • VisualDx Elite Annual7 Days trial$299.991 Year
  • Complete+DermExpert (1 Year)1 Month trial$499.991 Year
One-time2
  • Add DermExpert (1 yr)$99.99
  • Complete (1 yr)$399.99
None

Top Derm

No in-app purchases

Questions

Is VisualDx free?
VisualDx is free to download, with in-app purchases available.
Is Top Derm free?
Top Derm is free to download, with no in-app purchases.
Which has better reviews, VisualDx or Top Derm?
Top Derm is rated higher. VisualDx averages 4.4 out of 5 from 186 ratings, while Top Derm averages 4.5 from 59 ratings.
Do VisualDx or Top Derm have ads?
Top Derm shows ads; VisualDx does not.
Which is updated more often, VisualDx or Top Derm?
VisualDx ships an update fortnightly, and Top Derm every 6 weeks. Most recently, VisualDx was updated on September 23, 2026 and Top Derm on June 1, 2026.

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