Comparison

Dermoscopy Two Step Algorithm vs Fitzpatrick's Color Atlas

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

Head to head
About

Dermoscopy Two Step Algorithm

This app guides healthcare professionals in interpreting dermoscopic patterns to identify skin lesions. It uses a series of questions and provides over 80 images and charts to aid in diagnosis. Interactive cases are included for practice.

Highlights
  • Dermoscopic pattern interpretation
  • Question-based diagnostic guidance
  • Over 80 photos and charts
  • 50 interactive diagnostic cases
  • Offline functionality
  • Melanocytic and non-melanocytic lesion analysis
Features
Read full description

This app is intended to help you interpret the dermoscopic patterns seen with your dermatoscope. You will be asked a series of questions that will lead you to the most probable diagnosis. This app also contains over 80 photos and charts to help you in your diagnosis. No internet connection needed to view the full app. It is all ready for super quick image and information retrieval. There are also 50 interactive cases to solve. Each case starts with a clinical and dermoscopic image and ends with a labelled dermoscopic image pointing out critical structures. This app is based on the 2 step algorithm with the first step involving the determination of whether the lesion is a melanocytic. Melanocytic lesions will be divided into nevi or lesions with varying levels of suspicion for melanoma based on melanoma specific patterns and common nevi patterns. Non-melanocytic lesions will be analyzed to determine if they are suspicious for basal cell carcinoma or squamous cell carcinoma. Common benign lesions such as dermatofibroma, seborrheic keratoses and hemangiomas will be positively identified to avoid unnecessary biopsies. This app will increase your ability to detect skin cancers with greater accuracy thereby decreasing unnecessary biopsies and missing less early melanomas and nonmelanoma skin cancers. Check out https://usatinemedia.com to learn more and watch a video demo of this app narrated by Dr. Richard P. Usatine. Authors: Ashfaq A. Marghoob, MD Memorial Sloan-Kettering Cancer Center New York, New York Richard P. Usatine, MD University of Texas Health Science Center San Antonio, Texas Natalia Jaimes, MD Aurora Skin Cancer Center and Universidad Pontificia Bolivariana Medellin, Colombia To learn more dermoscopy from these authors, see www.americandermoscopy.com. Disclaimer: This app is intended for the education of healthcare professionals and not as a diagnostic and treatment reference for the general population. Disclaimer: While this app may help you in rendering a correct diagnosis, it is not intended to entirely replace the findings on patient history and physical examination including examination of the lesion with side lighting and touch. The final diagnosis rests on properly assimilating the information gained from the patient history, thorough naked eye physical examination, and meticulous dermoscopic inspection of the lesion. 3Gen, Inc. is the sponsor of this app. Visit www.dermlite.com to see their complete line of skin imaging devices. Developed by Usatine Media Richard P. Usatine, MD, Co-President, Professor of Family & Community Medicine, Professor of Dermatology and Cutaneous Surgery, University of Texas Health San Antonio Peter Erickson, Co-President, Lead Software Developer

About

Fitzpatrick's Color Atlas

This clinical dermatology resource provides high-quality images and concise summaries of skin disorders. It aids physicians, residents, and students in diagnosing and treating a wide range of dermatologic conditions. Access sample content for free, with an in-app purchase required to unlock the full library.

Highlights
  • Over 1,000 full-color images of skin lesions
  • Concise summaries of dermatologic disorders
  • Cutaneous signs of systemic disease
  • Updated etiology, pathogenesis, management, and therapy
  • ICD-10 codes included for each disease
  • Highlights skin disease in diverse ethnic populations
Features
Read full description

""Try before you buy"" - Download the FREE App, which includes sample content. In-App Purchase is required to unlock all content. Fitzpatrick's Color Atlas and Synopsis of Clinical Dermatology, 9th Edition - Compact, diagnosis-speeding guide has virtually defined the field of dermatology for thousands of physicians, dermatology residents, and medical students across the globe. Spanning the entire spectrum of skin problems, it combines laser-precise color images of skin lesions with a concise summary outline of dermatologic disorders, along with the cutaneous signs of systemic disease. A Doody's Core Title for 2023! The bestselling, go-to guide to the dermatologic conditions most often encountered in primary care—updated to reflect the latest developments in the field For more than three decades, Fitzpatrick’s Color Atlas and Synopsis of Clinical Dermatology has remained one of the bestselling dermatology books in the world. This concise, quick-reference guide has virtually defined the field for thousands of physicians, dermatology residents, and medical students. Covering the most essential content on skin problems, this updated ninth edition combines laser-precise color images of skin lesions along with an overview of epidemiology and pathophysiology, and detailed information on diagnosis and treatment. Features: * Extensively revised and expanded with new material * Complete update of etiology, pathogenesis, management, and therapy Over 1,000 full-color images * Color-coded 4-part organization facilitates review at a glance * ICD-10 codes are included for each disease * Many images highlight skin disease in different ethnic populations 
Content licensed from printed ISBN ISBN 10: 1264278012 Content licensed from printed ISBN ISBN 13: 9781264278015 SUBSCRIPTION : Please purchase a yearly auto-renewing subscription to receive content access and available updates. Yearly auto-renewing payments- $69.99 Payment will be charged to your iTunes Account at confirmation of purchase. Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. Subscription may be managed by the user and auto-renewal can be disabled at any time by going to your device “Settings” and tapping “iTunes & App Store”. Any unused portion of a free trial period will be forfeited when you purchase a subscription, where applicable. If you have any questions or comments, email us any time: customersupport@skyscape.com or call 508-299-3000 Privacy Policy - https://www.skyscape.com/terms-of-service/privacypolicy.aspx Terms and Conditions - https://www.skyscape.com/terms-of-service/licenseagreement.aspx Author(s): Arturo P. Saavedra, Ellen K. Roh, Anar Mikailov Publisher: The McGraw-Hill Companies, Inc.

Screenshots

Dermoscopy Two Step Algorithm4 screens
Fitzpatrick's Color Atlas4 screens

Verdict

The call

The clearest difference is in-app purchases: Dermoscopy Two Step Algorithm at none against Fitzpatrick's Color Atlas's 5. Dermoscopy Two Step Algorithm also leads on ads (none vs shown) and review sentiment (100% vs 67%). Fitzpatrick's Color Atlas's advantage is ratings volume (30 vs 10). On price, rating, update cadence 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. Fitzpatrick's Color Atlas sells 5 in-app purchases, starting at $52.99 per year. Dermoscopy Two Step Algorithm asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.6 for Dermoscopy Two Step Algorithm against 4.5 for Fitzpatrick's Color Atlas. Both are backed by a comparable volume of ratings — 10 and 30 respectively. Written reviews are what separate them: 100% of Dermoscopy Two Step Algorithm's written reviews are positive against 67% of Fitzpatrick's Color Atlas's.

UpkeepUpdate frequency

Dermoscopy Two Step Algorithm ships an update every 5 months, Fitzpatrick's Color Atlas every 6 months. The most recent releases landed on October 13, 2026 and October 16, 2026 respectively.

Scorecard6 real differences · 4 level
Dermoscopy Two Step Algorithm versus Fitzpatrick's Color Atlas: the parameters behind the verdict, then further details
ParameterDermoscopy Two Step AlgorithmFitzpatrick's Color Atlas
PriceFreeFree
Rating4.6 (10 ratings) — better4.5 (30 ratings)
Positive reviews100.0% of reviews — better66.7% of reviews
Number of ratings1030 — better
Update frequencyEvery 5 months — betterEvery 6 months
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Mac — better
Requires iOS10.0 — better13.0
Further details — not scored
Size220 MB149 MB
Age rating17+17+
DeveloperUsatine & Erickson Media LLCSkyscape Medpresso Inc

Customer experience

Dermoscopy Two Step Algorithm

All ratings10 ratings
Positive90.0%
Neutral0.0%
Negative10.0%
Written reviews4 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Fitzpatrick's Color Atlas

All ratings30 ratings
Positive86.7%
Neutral0.0%
Negative13.3%
Written reviews3 reviews
Positive66.7%
Neutral0.0%
Negative33.3%

In-app purchases

None

Dermoscopy Two Step Algorithm

No in-app purchases

5 purchases

Fitzpatrick's Color Atlas

Subscriptions4
  • 15% Off - Limited Period Offer$52.991 Year
  • 20% Off - Limited Period Offer$55.991 Year
  • 15% Off - Limited Period Offer$59.991 Year
Show 1 more
  • Fitzpatrick Color Atlas 1/YSub$69.991 Year
One-time1
  • Fitzpatrick's Color Atlas$69.99

Questions

Is Dermoscopy Two Step Algorithm free?
Dermoscopy Two Step Algorithm is free to download, with no in-app purchases.
Is Fitzpatrick's Color Atlas free?
Fitzpatrick's Color Atlas is free to download, with in-app purchases available.
Which has better reviews, Dermoscopy Two Step Algorithm or Fitzpatrick's Color Atlas?
Dermoscopy Two Step Algorithm is rated higher. Dermoscopy Two Step Algorithm averages 4.6 out of 5 from 10 ratings, while Fitzpatrick's Color Atlas averages 4.5 from 30 ratings.
Do Dermoscopy Two Step Algorithm or Fitzpatrick's Color Atlas have ads?
Fitzpatrick's Color Atlas shows ads; Dermoscopy Two Step Algorithm does not.
Which is updated more often, Dermoscopy Two Step Algorithm or Fitzpatrick's Color Atlas?
Dermoscopy Two Step Algorithm ships an update every 5 months, and Fitzpatrick's Color Atlas every 6 months. Most recently, Dermoscopy Two Step Algorithm was updated on October 13, 2026 and Fitzpatrick's Color Atlas on October 16, 2026.

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