I can't give zero stars - so it only gets one star.
Gov.uk app is an unusable pile of trash. If your idea of fun is to wade around - waist deep in unintelligible instructions - then this is the place for you. You'll spend hours and hours getting nowhere - and eventually end up where you started. It's just like the HS2 railway line. It doesn't do anything, doesn't go anywhere and it cost a fortune to build. And that's why 89% of reviewers give it one star. And that's only because they can't give it zero stars.