https://thenextweb.com/apps/2018/10/26/this-app-supports-those-struggling-with-opioid-addiction/

According to Substance Abuse and Mental Health Services Administration (SAMHSA), one of the biggest problems faced by people recovering from drug addiction is in forming supportive relationships that keep them away from triggers causing relapse.

Hey,Charlie, a new smartphone app for behavioral modification developed by Emily Lindemer, a PhD graduate from MIT, helps those recovering from substance use by keeping you on track with text alerts sent during vulnerable moments.