If you've got an Android phone, Slide (https://play.google.com/store/apps/details?id=net.pentapixel.slidefree https://play.google.com/store/apps/details?id=net.

If you've got an Android phone, Slide (https://play.google.com/store/apps/details?id=net.pentapixel.slidefree https://play.google.com/store/apps/details?id=net.pentapixel...) is pretty similar (yet not quite the same).