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The app requires an internet connection at regular intervals throughout the day. This is to:

  • download the latest list of venues where someone has recently tested positive for coronavirus (COVID-19)

  • download a list of anonymous IDs of people who have recently tested positive for coronavirus

The amount of data used will vary from day to day, depending on how many coronavirus cases there are. The app team will be carefully monitoring data usage to make sure it remains at a reasonable level.

Major phone operators in England and Wales, including Vodafone, Three, EE, O2 (including giffgaff and Tesco mobile), Sky, and Virgin, are supporting NHS COVID-19 app users by ‘zero-rating’ data charges for all in-app activity. This means customers will not be charged for data when using the in-app functions, or if they are directed out of the app to nhs.uk websites.