[Glitch] One App in IOS Folder

Ok we know that if we drag an icon on top of another we can make them both go into a folder

So how do you put a Single app in a folder?
Here is how it is done:

1.  Create a folder- Normally how you do that.
2.  Now remove all the apps from the folder , just leaving one app in the folder
3.  You are now left with one app in the folder :p

Who and Why should you do this?
–Fun–IOS Glitch–Bug–

Screen: