You can set up notifications in such a way that users will receive them when they are supposedly ready to react to them (hour targeting). Push notifications can cover millions of people all over the world.
Push notifications is hit of the season
Push notifications are a kind of new native advertising. They subscribe voluntarily for notifications, which means timely notification should become desirable.
Push notifications are good not only for existing customers, but also for completely new users. It is one of the few traffic formats that allows you to capture the planet with your capacious ads.
Lack of bots
Push traffic is always about real people, no bots, cheating and so on. A source designed to clear the network of fakes.