It looks like a flashier version of the MyDiabetesMyWay app that is used all over Scotland. Based in Dundee, the IT capital of Scotland, it collects data from your diabetic blood tests, including renal, wherever those tests are done - in hospital, Gp Surgery, anywhere in Scotland. Doesn’t need any user input, but is a good general guide for your own progress.
The MyHealth Diabetes App is safe to download, it is Apple approved, and they are are very hot on online safety. That is just for info, it is also safe on Android devices.