1.Fill up your home screen with apps. Keep one folder on the home screen.
2.Place all the apps you want to hide away in a folder in the dock.
3.Tap and hold that folder while double-pressing the home button to open up the app switcher.
4.Switch back the home screen.
5.Tap the folder on the home screen (the one you don't want to hide).
6.Back out to the home screen again.
7.Press the home button.
Methods to get it back
Search it up in spotlight
Turn of your device and back on
All thanks go to http://www.reddit.com/r/iOShacks/