Then tap and hold the icon of application you would like to uninstall until the icons wiggle.
Afterwards tap the X located on the upper left cornef of the icon you wish to delete.
The window with delete information should appear on the screen.
In order to confirm the operation select “Delete”.
What can goes wrong:
If there is no X option after holding the apps icon you probably have disabled deletin apps option. To turn it back on you should go to Settings. Then find and select Restrictions and turn Deleting Apps to On status.
Some of the system applications like Notes, SMS or Camera cannot be removed because they are part of the Apple iOS.
At the very beginning from the Home Screen find and select Settings.
In the next choose General and tap Storage & iCloud Usage.
Then under the Storage section look for the Manage Storage and select it.
From installed apps tap and open the one you wish to remove.