How Google's 'ten Things We Know To Be True' could guide the development of mental health mobile apps.

From 2011 to 2030, mental health conditions are projected to cost the global economy $16 trillion through lost labor and capital output. The gold standard of psychological interventions, one-on-one therapy, is too costly and too labor-intensive to keep up with the projected growth in demand for mental health services. Therefore, new solutions are needed to improve the efficiency of mental health care delivery and to increase patient self-care. Because 85 percent of the world's population has wireless signal coverage, there is an unprecedented opportunity for mobile technologies to incorporate psychological self-care into people's daily lives and relieve workforce shortages. In this article, we suggest that policy makers look to technology innovators for guidance. For example, Google's principles, called "Ten Things We Know To Be True," are useful for understanding the drivers of success in mobile technologies. For principles such as "focus on the user and all else will follow," we identify examples of how evidence-based mobile mental health technologies could increase patient self-care and reduce the demand for one-on-one psychological intervention. Project HOPE—The People-to-People Health Foundation, Inc.