What app uses this status bar icon?

[AC Question]

Here's example of an icon I stumbled upon in the internet:
i.imgur.com/ELfzfXF.png
Do you know what app uses it?

 

[B. Diddy]

Welcome to Android Central! Is that showing up on the left or right of the status bar? If it's on the left, does it show up if you swipe down the notification panel?