Instead of deleting the app (which you wouldn’t be able to do anyway, with Apple’s preinstalled apps) you could go into the app in question and clear out some old photos or songs, for example. To delete an app you’re finished with, click it in this list, then Delete App and confirm. Alternatively, from the Home screen you can tap and hold any icon, then tap the X at the top left of an app to delete the app. (If it hasn’t got an X, you can’t delete it.)
iCloud backup If having erased the content of the phone you intend to keep using it, you can restore the content to your phone from your backup. With the factory reset completed you’ll need to go through the setup of your iPhone again from the beginning; entering your details, Wi-Fi password and a few other things until you reach the page where you’re asked how you want to ‘Set Up iPhone’. You have the three options – Set Up as a New iPhone, Restore from iCloud Backup or Restore from iTunes backup – so select the iCloud option and you’ll be prompted to enter your iCloud account details. Once you’ve done this, and agreed to the terms and conditions, your iPhone will begin restoring all of your data. 106 iPAD & iPHONE USER ΄ ISSUE 109