Comparison

Mohs Appropriate Use Criteria vs Dermoscopy Two Step Algorithm

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

Head to head
About

Mohs Appropriate Use Criteria

This app provides systematic decision support for determining the appropriateness of Mohs surgery for skin cancer treatment. It guides users through various scenarios, tumor characteristics, and patient factors, offering color-coded body maps and clinical algorithms.

Highlights
  • Decision support for 270 scenarios
  • Guided navigation for tumor/patient factors
  • Color-coded body maps
  • Supplemental clinical algorithms
  • Quick reference sharing
Features
Read full description

There are many considerations when determining whether to use Mohs surgery for the treatment of skin cancer. The American Academy of Dermatology's new Mohs Surgery Appropriate Use Criteria app can easily and systematically assist you in determining when Mohs is most appropriate for your patients. Whether you are a Mohs surgeon, a general dermatologist, or other referring physician, this app can help you seamlessly implement the AUC in your practice. Highlights of this free app include: •Decision support on the appropriateness of Mohs for 270 unique scenarios •Guided navigation through tumor and patient characteristics •Color-coded body maps for high, medium and low-risk areas •Supplemental clinical algorithms •Quick reference that can be shared with referring physicians and patients

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

Screenshots

Mohs Appropriate Use Criteria4 screens
Dermoscopy Two Step Algorithm4 screens

Verdict

The call

The clearest difference is rating: Mohs Appropriate Use Criteria at 5.0 against Dermoscopy Two Step Algorithm's 4.6. Dermoscopy Two Step Algorithm's advantage is review sentiment (100% vs 75%) and iOS requirement (10.0 vs 17.0). On price, ratings volume, update cadence and ads 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Mohs Appropriate Use Criteria holds the better App Store score, 5.0 against 4.6. Both are backed by a comparable volume of ratings — 6 and 10 respectively. Written reviews complicate that: 75% of Mohs Appropriate Use Criteria's written reviews are positive against 100% of Dermoscopy Two Step Algorithm's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Mohs Appropriate Use Criteria ships an update every 8 months, Dermoscopy Two Step Algorithm every 5 months. The most recent releases landed on August 1, 2026 and September 11, 2026 respectively.

Scorecard3 real differences · 7 level
Mohs Appropriate Use Criteria versus Dermoscopy Two Step Algorithm: the parameters behind the verdict, then further details
ParameterMohs Appropriate Use CriteriaDermoscopy Two Step Algorithm
PriceFreeFree
Rating5.0 (6 ratings) — better4.6 (10 ratings)
Positive reviews75.0% of reviews100.0% of reviews — better
Number of ratings610 — better
Update frequencyEvery 8 monthsEvery 5 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.010.0 — better
Further details — not scored
Size13 MB220 MB
Age rating12+17+
DeveloperAmerican Academy of DermatologyUsatine & Erickson Media LLC

Customer experience

Mohs Appropriate Use Criteria

All ratings6 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews4 reviews
Positive75.0%
Neutral0.0%
Negative25.0%

Dermoscopy Two Step Algorithm

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

In-app purchases

None

Mohs Appropriate Use Criteria

No in-app purchases

None

Dermoscopy Two Step Algorithm

No in-app purchases

Questions

Is Mohs Appropriate Use Criteria free?
Mohs Appropriate Use Criteria is free to download, with no in-app purchases.
Is Dermoscopy Two Step Algorithm free?
Dermoscopy Two Step Algorithm is free to download, with no in-app purchases.
Which has better reviews, Mohs Appropriate Use Criteria or Dermoscopy Two Step Algorithm?
Mohs Appropriate Use Criteria is rated higher. Mohs Appropriate Use Criteria averages 5.0 out of 5 from 6 ratings, while Dermoscopy Two Step Algorithm averages 4.6 from 10 ratings.
Do Mohs Appropriate Use Criteria or Dermoscopy Two Step Algorithm have ads?
Neither Mohs Appropriate Use Criteria nor Dermoscopy Two Step Algorithm shows ads.
Which is updated more often, Mohs Appropriate Use Criteria or Dermoscopy Two Step Algorithm?
Mohs Appropriate Use Criteria ships an update every 8 months, and Dermoscopy Two Step Algorithm every 5 months. Most recently, Mohs Appropriate Use Criteria was updated on August 1, 2026 and Dermoscopy Two Step Algorithm on September 11, 2026.

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