Appropriate use criteria exist to help guide choosing testing for different diseases. The American Society of Dermatopathology's new Dermatopathology Appropriate Use Criteria app allows a systematic approach to reviewing tests for multiple conditions evaluated in Dermatopathology. The general audience includes Dermatopathologists, Pathologists, Dermatologists, or other referring physicians to allow easier access to the Dermatopathology Appropriate Use Criteria.