When we consider a comprehensive strategy to suicide prevention and mental health promotion, it’s helpful to segment approaches into “upstream” (preventing problems before they emerge through self-help), “midstream” (catching emerging problems early and linking people to least restrictive support), and “downstream” (helping people with more serious mental health challenges and suicidal thoughts) tactics.

Thus, for this article, I have organized some of the most popular, best researched and most innovative apps into these three categories.