By clicking uninstall
well it depends on the gadgets that you are usingHow do i delete an app?
ادخل الى التطبيقات ادخل الى التطبيق المراد حذفه انقر الغاء التثبيتWould totally resetting your iPod delete all the apps?
Gently spot and press the app till it jerks.
Hit in the upper-left edge of the app.
If you hold too tightly on an app, you force open the app's Quick Steps menu. Tap outside of the Smart Actions list, then gently move and operate the app to try repeat.