TTT
The Government says it isn’t working yet.
The NHS says it isn’t working yet.
Your Google store account warns it is not finished.
The app is being trialed. If you are a programmer, you should understand what that means. A limited number of testers have been given access to the fully working version, and they are asked to report bugs. Backend, the data the The users are uploading is being used to test the collection systems
The App itself is extremely basic. It has no user functionality. All the heavy lifting work is being done backend, and that is what they are evaluating. When they are happy that it is fit for purpose, it will be rolled out Nationwide. Until then, it is just an icon that does nothing.