if you are resistant to smart phones, there is a facility to get a plastic card, but you'll miss out on all the other great things in the app, like being able to get the offers and discounts in the marketplace, or book restaurants or facilities. it's definitely a mobile—first building. what data is the app collecting? is it getting the sort of detail of somebody moving around the building, or is it not to that level? and what is done with that data? we collect anonymised data on where people visit in the building. that allows us to provide an expense were there are push events, there is a cofee offer on the mezzanine level. they go through to the location services on the smartphone. that's it for this week. as ever, you can keep up with the team on social media. find us on youtube, instagram, facebook and twitter at @bbcclick and we'll be back next week. thanks for watching. bye— bye.