Unidentified

I had trouble taking spider photos in South Carolina from frequently shifting temps and humidity. My lenses got fogged often, I just remembered that I had to keep drying my lenses and the macro lens didn’t work for me for that reason. I think there are anti-fogging chemicals. I wasn’t there long enough to experiment more.

Usually that looks more pixelated, maybe iPhones are different. Some Android have manual focus abilities. If your phone has a white circle around the subject try holding the phone a bit further away. There’s a lot of variation in the Android phones. Mine tracks focus on the moving bug, which is really nice.
Definitely try changing your camera app. The ones that come with the phone aren’t usually the best. Your physical camera is the same, but you get new ways to control it. There is definite differences and most developers will work with you to improve their apps.