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

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

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Country of origin

New Zealand

Clinical review 

Read a clinical review of this app.

User reviews 


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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
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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 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

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

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Disclaimer: Health Navigator’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.

Credits: Health Navigator Editorial Team. Reviewed By: Jeremy Steinberg, GP, FRNZCGP Last reviewed: 12 Nov 2020