Original ecological operation deletion
To delete an application through the original operation of iPhone, you only need to find "Access Restriction" in the "Settings" interface, enter the access password, open the "Delete Application" option, then press and hold the application you want to delete in the main screen, and then touch the "X" symbol in the upper left corner to delete it.
ITools deficiency
To delete through iTools, you need to download and open the iTools application, connect the iPhone to the computer with a data cable, open the iTools application on the computer, select the application menu, select the application in the left list, check the small box on the left of the application to be deleted in the right application list, select the uninstall option, and press OK to complete the deletion.