https://phys.org/news/2018-06-iphone-features-ways.html

Apple also will give users reports on how much time they spend on apps and what gets them to check them constantly. They can set time limits on specific apps—and set controls for kids.

Last month, Google revealed plans to have Android phones go into "shush" mode when placed face down on a table and have the screen show only greyscale colors late at night. Both companies' efforts come as experts worry that all the flashy colors and beeps give users short-term, feel-good rewards while increasing stress in the long run.