# PO vs Dermoscopy Two Step Algorithm

The clearest difference is rating: Dermoscopy Two Step Algorithm at 4.6 against PO's 4.0. Dermoscopy Two Step Algorithm also leads on ratings volume (10 vs 1). PO's advantage is iOS requirement (8.0 vs 10.0). On price, update cadence, 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.

Dermoscopy Two Step Algorithm holds the better App Store score, 4.6 against 4.0. 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.

PO ships an update every 3 months, Dermoscopy Two Step Algorithm every 5 months. The most recent releases landed on October 14, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | PO | Dermoscopy Two Step Algorithm |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (1 ratings)](https://appshunter.io/ios/app/po-scorad-phone/id659289317/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 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 5 months |
| Monetization | Free | Free |
| Size | 180 MB | 220 MB |
| Requires iOS | **8.0** | 10.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Fondation pour la Dermatite Atopique](https://appshunter.io/developer/1051800254) | [Usatine & Erickson Media LLC](https://appshunter.io/developer/1466894388) |

## What reviewers say

### PO

[App page](https://appshunter.io/ios/app/po-scorad-phone/id659289317)

This medical app helps patients self-assess the severity of their eczema by scoring symptoms like extent, intensity, itching, and sleep disturbance. Developed by the Eczema Foundation, it calculates the PO-SCORAD Index based on user input, providing an overview of eczema severity.

**Highlights:** Eczema self-assessment, PO-SCORAD Index calculation, Symptom scoring (extent, intensity, itching, sleep), Developed by Eczema Foundation, Available in 24 languages

**Features:** macOS Compatibility, Vision Pro support

**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 PO free?

PO 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, PO or Dermoscopy Two Step Algorithm?

Dermoscopy Two Step Algorithm is rated higher. PO averages 4.0 out of 5 from 1 ratings, while Dermoscopy Two Step Algorithm averages 4.6 from 10 ratings.

### Do PO or Dermoscopy Two Step Algorithm have ads?

Neither PO nor Dermoscopy Two Step Algorithm shows ads.

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

PO ships an update every 3 months, and Dermoscopy Two Step Algorithm every 5 months. Most recently, PO was updated on October 14, 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.*