Teens are on the phone all the time and they are constantly scrolling or sending messages.
I was thinking about creating a chat gaming app for teens, concept is following:
I could say it's a mixture between Messenger and Chess. I think it would be fun to make. I'm web dev and I can provide API endpoints, server infrastructure, website do some promotion to teenagers.
It could be a hybrid app, so ReactNative, Flutter or pure native app with Swift. We don't have to start from scratch since there is InstaMobile website that provides an almost finished iOS messenger app.