These digital tools meet NHS quality standards for safety, usability and accessibility and are being tested now with NHS patients to see if there is sufficient evidence to provide them an NHS stamp of approval.
Being tested in the NHS

Category: Mental health


Cypher (formerly Silent Secret) is an anonymous peer-to-peer social network. It is a space to share your feelings and secrets, give and receive support, and connect to other support organisations.

This app is currently under reassessment for Data Protection following changes introduced by GDPR.


Who is it suitable for?

Cypher is suitable for anyone who wants to share their thoughts and connect with others.

How does it work?

Cypher app allows you to:

  • anonymously share your thoughts and feelings
  • post comments, ‘hugs’, ‘hearts’ or ‘me2s’ on what others share
  • instant message others in your support network
  • use the ‘Get support’ function to connect with other support organisations
  • pick a virtual pet who gets happier the more good you do

Report an issue

You can contact the developer directly to report any issue or if you have any questions about this product.

Please share the details through our contact form for our records.

How do I access it?

You can download the Cypher app for free from the App Store and Google Play.

Page last reviewed: 04/04/2018
Next review due: 04/04/2021


The app developer is solely responsible for their app's advertisement, compliance and fitness for purpose. Unless stated otherwise, apps are not supplied by the NHS, and the NHS is not liable for their use.

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NHS here stands for NHS Digital, NHS England, Department of Health and Social Care, Public Health England, NICE, MHRA, CQC, GPs and any other health professionals undertaking NHS-funded care. See full disclaimer