The NHS app is a security protected link to your GP medical record. It enables you to manage your presciptions and appointments from your phone or tablet, and gives easy access to health advice from the nhs.uk website whenever you need it.
It will also soon feature access to your recent test results and medical record summary, along with ability to eConsult.
It is also compatible with finger-print recognition, so once it is set up you no longer have to remember a password.
Once you have installed the app, the best way to set it up is at home. You will need some photo ID available - best is a UK Passport or Driving Licence.
Follow the instructions on the app to Register your account - even if you are already a SystmOnline user. When asked if you have the log-in details from your GP, then select "I don't have any of these".
You will be asked to take a photo if the ID, and also to then record a short video of you speaking a series of 4 random numbers. These are then used to confirm your identity.
You can find more information at the official NHS app's website.