44% of people 18-29 deleting the app from their phones sounds bad, but it's important to take into account that Facebook does all sorts of things to increase engagement in their apps that cause some people to be annoyed. Facebook could make their app less distracting or make it easy to turn off annoying features, and fewer would uninstall it. It also doesn't take into account people reinstalling it. I've deleted and reinstalled it in the last year, and it is currently installed.