# Skin Advocate vs Dermoscopy Two Step Algorithm

The clearest difference is rating: Skin Advocate at 5.0 against Dermoscopy Two Step Algorithm's 4.6. Dermoscopy Two Step Algorithm's advantage is update cadence (every 5 months vs every 18 months) and ratings volume (10 vs 1). On price, review sentiment, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Skin Advocate holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Dermoscopy Two Step Algorithm has 10 ratings behind it against 1, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

Skin Advocate ships an update every 18 months, Dermoscopy Two Step Algorithm every 5 months. The most recent releases landed on October 20, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Skin Advocate | Dermoscopy Two Step Algorithm |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/skin-advocate/id465525999/reviews)** | [4.6 (10 ratings)](https://appshunter.io/ios/app/dermoscopy-two-step-algorithm/id731753300/reviews) |
| Number of ratings | 1 | **10** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 18 months | **Every 5 months** |
| Monetization | Free | Free |
| Size | 9 MB | 220 MB |
| Requires iOS | 10.0 | 10.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 12+ | 17+ |
| Developer | [Society for Investigative Dermatology](https://appshunter.io/developer/465526002) | [Usatine & Erickson Media LLC](https://appshunter.io/developer/1466894388) |

## What reviewers say

### Skin Advocate

[App page](https://appshunter.io/ios/app/skin-advocate/id465525999)

This app connects physicians and dermatology patients with patient advocacy groups. It offers immediate access to contact information, organizational goals, and websites for groups within the Coalition of Skin Diseases. Information can be anonymously emailed to patients or printed for hard copies.

**Highlights:** Access to patient advocacy groups, Contact information and websites, Synopsis of organization goals, Anonymous email sharing, Printable hard copies, Free service

**Features:** macOS Compatibility

**In-app purchases:** none


### Dermoscopy Two Step Algorithm

[App page](https://appshunter.io/ios/app/dermoscopy-two-step-algorithm/id731753300)

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:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Skin Advocate free?

Skin Advocate 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, Skin Advocate or Dermoscopy Two Step Algorithm?

Skin Advocate is rated higher. Skin Advocate averages 5.0 out of 5 from 1 ratings, while Dermoscopy Two Step Algorithm averages 4.6 from 10 ratings.

### Do Skin Advocate or Dermoscopy Two Step Algorithm have ads?

Neither Skin Advocate nor Dermoscopy Two Step Algorithm shows ads.

### Which is updated more often, Skin Advocate or Dermoscopy Two Step Algorithm?

Skin Advocate ships an update every 18 months, and Dermoscopy Two Step Algorithm every 5 months. Most recently, Skin Advocate was updated on October 20, 2026 and Dermoscopy Two Step Algorithm on October 24, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*