Just realised that we didn't answer the question. You delete unwanted apps by touching any icon for a few seconds until it starts shaking, and a (X) appears on the top left corner of the icon (and all other icons). Touch the (X) to remove the app.
Actually this isn't very intuitive when you have to explain it! :-)
Last edited by anony_mouse; 07-22-2016 at 04:17 AM.