Which application's status bar notification icon is this?

[AC Question]

Which application's status bar notification icon is this?

It is a smiley notification icon with lips in the shape of a sqaurr bracket.

Looks more like a messaging or a dating app notification icon.

Kindly help me on this..

 

[Golfdriver97]

Welcome to the forums. When you pull the notification shade down, is there a listing for that notification?

 

[Javier P]

Also, which phone do you have? There are ways to see which app sent a notification that didn't show up on the notification shade, but the right steps will depend on your model.