What app uses this crown icon?

[MartinPHP]

I’ve seen couple people with this notification, but is not from Clash Royale game. Somebody has a clue?

 

[ocnbrze]

I’ve seen couple people with this notification, but is not from Clash Royale game. Somebody has a clue?

that could be anything. there are probably thousands of apps that uses a crown as a notification icon. the best way to know is to look in the phone's notification. just ask the person what it is.