Does the NHS COVID-19 app store my IP address?
Emily Sparks
Published Jan 10, 2026
See full answerDoes the NHS COVID-19 app store my IP address?
Your IP address (a unique identifier for your phone when you use the internet) is automatically shared with the Department for Health and Social Care (DHSC) when you share data through the App. DHSC does not use your IP address however and deletes it as soon as it is received. Like every other app, our app uses the internet to work which requires the use of the IP address.
The application is reviewed and tested to make sure that there never exists functionality that collects, logs, retransmits or stores the IP addresses received within HTTP headers. This minimises the possibility of recombining IP address and payload data.
Can I be traced via the NHS COVID-19 app?
The system gives a high level of privacy protection, as the app does not collect or transfer any information that tells us who or where you are. This also means it cannot tell the NHS, people and organisations who have contributed to the development of the app, or any other app user, who or where you are.
Does the NHS COVID-19 app protect your privacy?
The app has been designed with user privacy in mind, so it tracks the virus, not people and uses the latest in data security technology to protect privacy. The system generates a random ID for an individual's device, which can be exchanged between devices via Bluetooth (not GPS).
These unique random IDs regenerate frequently to add an extra layer of security and preserve anonymity. The app does not hold personal information such as your name, address or date of birth, and only requires the first half of your postcode to ensure local outbreaks can be managed.
Does the NHS COVID-19 app gather analytical data?
Each 6-hour period, the app collects a summary count of key information. This is called the analytical data set and helps us monitor the use, performance and information about the app and its use. The data is prepared and will be sent to central systems where it used for assurance of the app, technical checks and the public health functions. It does not include the data held on your app about specific venues or your close contacts.
How does the National Health Service (NHS) app protect user's privacy?
The technique used to provide app users with their correct result also ensure that the identity of the user is protected. When the app recommends a test for users it requests three separate tokens. These are generated by services outside of the app and are not recorded in the app. They are unique and anonymous and cannot be derived from each other or any other information.
These three tokens allow the correct information to be returned to the correct user whilst maintaining their privacy and ensuring that data cannot be linked. We dealt the tokens promptly once we’ve updated the relevant app.
21 related questions foundHow does the National Health Service (NHS) app prevent re-identification?
Only those with access to the app will have details of the venues checked into. No details about which venues a user has checked into is included in the analytical data set or provided to the use.
How does the NHS COVID-19 app protect users' anonymity while tracking the cases?
The app uses complex cryptography to protect you and other app users' anonymity while enabling diagnosis keys to be matched with a relevant broadcast key when relevant. Where there are matches, you will get an alert that you've been in contact with someone who tested positive.
How often does the National Health Service (NHS) app update data?
The app is updated by the central systems (product environment), on average, every 2 hours. The central system provides all app users with three key sets of data. Every app user receives the same information, called reference material, which the app uses to determine if you need to receive an alert or advice. These are:
• the list of Diagnosis Keys from app users who have tested positive. This functionality keeps the identity of app users anonymous to other app users
• the list of all postcode districts and their current risk level
• the list of venues that could pose a risk, as determined by Health Protection Teams and the Joint Biosecurity Centre (JBC)
Which organisations process personal data from NHS COVID-19 app?
The ones that will be processing personal data are:
•Amazon Web Services (AWS) which hosts the central system (cloud server) that supports the app
•The Health Informatics Service (THIS), which is hosted by the Calderdale and Huddersfield NHS Foundation Trust. THIS provides the ‘NPEx’ system which provides test results to the app (using the test code unique to the app)
These organisations can only work under instruction from DHSC and cannot use information they process for any other purposes
What happens during a venue check-in on the NHS COVID-19 app?
Venue check-ins add a count of the venue check-ins during the 6-hour analytical period. Where the check-in fails or is abandoned this is counted as well. This data is used to ensure the QR venue check in is working as expected as well as give a sense of how app users are using the function and the potential impacts.
Will my data be deleted after uninstalling the NHS COVID-19 app?
If you choose to delete the app, you will not receive any notifications (alerts) from the app about coronavirus (COVID-19) and the data stored by the app on your phone will be deleted. If you decide to install the app again, you will need to provide the requested information again.
Can I delete the COVID-19 app?
Right to be forgotten. You can choose to delete the app and the data it contains.
Can personal data collected for NHS Test and Trace be used for other purposes?
Personal data that is collected for NHS Test and Trace, which you would not collect in your usual course of business, must be used only to share with NHS Test and Trace.
It must not be used for other purposes, including marketing, profiling, analysis or other purposes unrelated to contact tracing, or you will be in breach of GDPR. You should make your staff aware of what they should and shouldn't do with customer information.
Can the data collected for COVID-19 contact tracing be used for other purposes?
Personal data that is collected for NHS Test and Trace, which you would not collect in your usual course of business, must be used only to share with NHS Test and Trace.
It must not be used for other purposes, including marketing, profiling, analysis or other purposes unrelated to contact tracing, or you will be in breach of GDPR.
Which company designed the NHS COVID-19 app to protect the privacy and identity of the users?
This system is designed by Apple and Google to protect the privacy and identity of app users, making their use of the app anonymous.
What is the UK regulatory agency for monitoring COVID-19?
The Medicines and Healthcare products Regulatory Agency is responsible for protecting and improving the health of millions of people every day through the effective regulation of all medicines and medical devices in the UK by ensuring they work and are acceptably safe.
What is a venue check-in on the NHS app?
Venue check-ins add a count of the venue check-ins during the 6-hour analytical period. Where the check-in fails or is abandoned this is counted as well. This data is used to ensure the QR venue check in is working as expected as well as give a sense of how app users are using the function and the potential impacts.
How long after having COVID-19 can I get the spring booster vaccine?
If you are unwell, wait until you have recovered to have your vaccine. If you have had confirmed COVID-19 you should ideally wait 4 weeks before having your spring booster.
Can you still get Covid after vaccine?
Like all medicines, no vaccine is completely effective, so you should continue to take recommended precautions to avoid infection. Some people may still get COVID-19 despite having a vaccination, but this should be less severe.
How does Evushield for COVID-19 work?
Developed by AstraZeneca, Evusheld is a combination of two long-acting antibodies that works by binding to the spike protein on the outside of the SARS-CoV-2 virus, the virus that causes COVID-19. This in turn prevents the virus from attaching to and entering human cells.
What are public health and social measures (PHSMs)?
Public health and social measures (PHSMs) are measures or actions by individuals, institutions, communities, local and national governments and international bodies to slow or stop the spread of an infectious disease, such as COVID-19.
What is manual contact tracing in the context of the COVID-19 pandemic?
Manual contact tracing involves asking an infected person to remember who they have been in contact with; the person can only identify the people they know.
What are 'nudgeboxes' and what are they used for?
5,000 DNA 'Nudgebox' machines, supplied by DnaNudge, will be rolled out across NHS hospitals in the UK to analyse DNA in nose swabs, providing a positive or negative result for COVID-19 in 90 minutes, at the point of care. The machines will process up to 15 tests on the spot each day without the need for a laboratory.
Can I get a Braille or large print version of the NHS COVID Pass?
Braille and large print
You can get a Braille or large print version of the NHS COVID Pass letter via the NHS website or by calling 119 (select the 'NHS COVID Pass service').
What are some of the common side effects of the COVID-19 vaccine?
Some recipients have reported chills, shivering (in some cases rigors), and increased body temperature possibly with sweating, headache (including migraine-like headaches), nausea, myalgia and malaise, starting within a day of vaccination. These effects usually lasted for a day or two.