I was going to start a different thread on cell phone accessories, but since @tiwane mentioned it, I’ll chime in here instead. I really really love the Ztylus macro/supermacro lenses I have now for my iPhone XS. It magnets onto the special case (which is part of the $50 price tag) and then the macro/supermacro lenses just pop out and snap right into place. It’s less fiddly than a clip on.
They make different versions for different phones, so I do recommend checking it out. It (like every other cell phone lens kit) comes with wide angle and fish eye, which I find nearly useless, but it’s worth it for me for the macro alone. I took this photo of a tiny sawfly the other day, and this tiny hemipteran with the older Revolver macro lens on my iPhone 6s.
I think they should make a special naturalist revolver lens kit that ditches the fish eye and replaces it with another macro or a telephoto. I haven’t used the 2x telephoto much, but am trying to get in the habit.