The Lord Mayor's Show app gathers no personal information and does not identify you in any way. It uses your location to help you enjoy and navigate the Show and to help us monitor congestion.
On the day of the Show and within the processional area, the app will report your location at regular intervals. It does this in a completely anonymous way: basically, it says "someone is using the app at these coordinates". At Guildhall we project a live map onto the wall showing all the app users in the processional area. This gives us a way to visualise the overall density of the crowd and look out for dangerous congestion.
Other uses of your location
We use your location to support several other services:
- Live captioning of the procession. As the floats pass, the app will tell you who's who.
- Targeted emergency (and other) messages. If necessary we can send a message to all the app users in a particular area, to send them away in the right direction or more likely to say that Bank station is very full right now, and please try another.
Your app usage
The app includes a standard Google usage-report library (similar to the one used by most websites) so that we can see which functions are most popular and when they are used. It also reports crashes to us if something goes wrong. There is nothing personal or identifying about this information; again you are just 'someone' and the app tells us that "someone read the Canaletto page at last".