Facebook Apps Whatscall help pls

I have a question if someone could please help me out..
In my Facebook app under settings, permissions, apps and websites, it shows apps that I've connected to my Facebook.
So my girlfriend woke me up in the middle of the night, asking why this app called WhatsCall is showing up on there, and it says active.
It says apps will only show active if they've been logged into in the last 90 days. I don't remember ever using this app, and it doesn't show up in my Google play store as ever being...

Facebook Apps Whatscall help pls WordPress ...