Dermoscopy Two Step Algorithm vs DermIntraOp
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Dermoscopic pattern interpretation
- Question-based diagnostic guidance
- Over 80 photos and charts
- 50 interactive diagnostic cases
- Offline functionality
- Melanocytic and non-melanocytic lesion analysis
Read full descriptionHide 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
DermIntraOp
Read full descriptionHide full description
DermIntraOp is a quick reference for Mohs and dermatologic surgeons. MOHS AUC 2012 Step through tumor type, location, size and patient status to see the Appropriate, Uncertain or Inappropriate rating from the 2012 AAD/ACMS/ASDSA/ASMS Appropriate Use Criteria. STAGING AND RISK AJCC 8th edition, Brigham and Women's and NCCN risk groups for cutaneous SCC and basal cell carcinoma, plus AJCC staging for melanoma and Merkel cell carcinoma, with guideline-based management notes. ANTIBIOTIC PROPHYLAXIS A decision tree for surgical site infection, endocarditis and prosthetic joint considerations, with guideline regimens. SUTURE SELECTION Compare absorbable and nonabsorbable sutures on tensile retention, absorption time, handling, knot security and tissue reactivity. PHOTO MEASUREMENT Estimate defect size from a photo with a ruler in frame. Every tool lists its sources under the book icon. PRIVACY No account and no data collection. Everything you enter stays on your device, and you can erase it anytime. DermIntraOp is an educational reference tool. It does not provide medical advice and is not a substitute for independent clinical judgment. Always verify recommendations against current authoritative sources.
Screenshots
Verdict
The clearest difference is update cadence: DermIntraOp at every 3 days against Dermoscopy Two Step Algorithm's every 5 months. Dermoscopy Two Step Algorithm's advantage is iOS requirement (10.0 vs 18.5). On price, ads, in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Dermoscopy Two Step Algorithm ships an update every 5 months, DermIntraOp every 3 days. The most recent releases landed on October 29, 2026 and October 22, 2026 respectively.
| Parameter | Dermoscopy Two Step Algorithm | DermIntraOp |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (10 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 10 — better | — |
| Update frequency | Every 5 months | Every 3 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 10.0 — better | 18.5 |
| Further details — not scored | ||
| Size | 220 MB | 10 MB |
| Age rating | 17+ | 17+ |
| Developer | Usatine & Erickson Media LLC | Karan Rajalingam |
In-app purchases
Dermoscopy Two Step Algorithm
No in-app purchases
DermIntraOp
No in-app purchases
Questions
Is Dermoscopy Two Step Algorithm free?
Is DermIntraOp free?
Do Dermoscopy Two Step Algorithm or DermIntraOp have ads?
Which is updated more often, Dermoscopy Two Step Algorithm or DermIntraOp?
Other comparisons















