CPT Coach is for Veterans, Service members, and others with PTSD who are participating in Cognitive Processing Therapy (CPT) with a professional mental healthcare provider. This app contains support materials for a complete course of CPT to help patients manage their treatment, including between session assignments, readings, PTSD symptom monitoring, and mobile versions of CPT worksheets. CPT Coach is not intended to be used as self-help without the guidance of a professional mental healthcare provider. CPT Coach was a collaborative effort between the VAs National Center for PTSD, the VAs Sierra Pacific (VISN21) MIRECC, and the DoDs National Center for Telehealth and Technology. Additional thanks go to the Cincinnati VA Medical Center.