my phone app allows me to see the cemetery, see what markers are photographed already and follows me around so I can see exactly where I am in the cemetery. However, when I go to take a photo, I don't get a camera function and often get a message (paraphrased) that the app is unable to take a photo due to poor GPS connectivity. This has happened to me in both cemeteries that I have tried to take photos in. My wife (who also has an Iphone 8 identical to mine) was able to take photos at the first cemetery we were at together. Today I was by myself.