An online tool is designed to help you understand your skin condition.

DermDiag By Dermnet NZ
  • Education and information
  • Interactive
  • Image library

View the tool:

Country of origin

New Zealand

Clinical review 

Read a clinical review of this app.

Security and privacy Does the app:
  • collect medical information? No
  • require a login? No
  • have password protection? Not necessary
  • have a privacy policy? Yes
  • require internet access? Yes
Read more safety tips around health apps
Cost Free

What does the tool do?

DermDiag is an online tool developed by DermNet to help you understand your skin condition. It is intended for educational purposes and doesn't provide medical advice.

By answering a series of questions, and with images to help you along, you are shown a selection of common skin conditions with the characteristics you have chosen.  Although the tool doesn't provide clinical guidance, it helps you to talk to your doctor and to learn more about your skin condition.

For the complete description, go to the website(external link) or, for a more detailed review, see Reviews


✔ Based on the textbook Differential Diagnosis in Dermatology by Barbara Leppard and Richard Ashton.

✔ Input from dermatologists.

✔ Explains dermatological terms and uses pictures as examples.

✔ Links to the relevant condition pages on DermNet.

✔ Designations regarding disease prevalence where relevant.

✔Easy navigation.

✘ Some people may find the language challenging at times, but a glossary is provided.

Review details

Date of review: November 2020
Platform reviewed: Web browser

Related topics

Skin infections
NZ Health App Library
Consumer guide: how to choose a health app
Clinicians guide: how to choose a health app

App developer: If you are the developer and would like to provide updated information about this app, please email the app library manager at

Disclaimer: Healthify’s app library is a free consumer service to help you decide whether a health app would be suitable for you. Our review process is independent. We have no relationship with the app developers or companies and no responsibility for the service they provide. This means that if you have an issue with one of the apps we have reviewed, you will need to contact the app developer or company directly.

Data security and privacy information

Staying safe online
Netsafe, NZ, 2020

Credits: Healthify Editorial Team

Reviewed by: Jeremy Steinberg, GP, FRNZCGP

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