The phenomena of unpredictable diseases and pandemics that we have been through since 2020 can prove that diseases need to be solved with high efficiency. Measurement of efficiencies depends on the time of solving the problem, the operational cost, and the errors of humans and tools. PetSnap offers the best solution to detect diseases experienced by cats that can be known from the visual symptoms seen in a pet’s body capture using user camera. After getting the Yolov5 camera detector experience, the visual symptoms can be detected by four categorizations (scabies, fungi, abscess, and eyelid) closely to 1 in accuracy.