Help what is this?

[Luna_Love]

What is this app I found in an setting on my phone?

 

[Hadron]

It's an app that doesn't include an icon: that's why it has the default icon there.

Why it seems to be called "Hide" I don't know. Where exactly did you find it?

 

[ozonetrooper]

Maybe try this ?

https://play.google.com/store/apps/details?id=com.kingdev.hiddenapps&hl=en_US&gl=US