It was five stars until a few months ago, now it won’t open – Lab Values Reference Review

I have been using this app on and off for a few years now to track my parents blood test results. It was great. But recently, i cannot open the app at all, it stalls on the blood drop (first) page. I hope the developers update it for the newer devices (using xs max). Will update with five stars if they do!!! Thanks
Review by Filkot on Lab Values Reference.