Zombie apps are a real problem for iPhones of every stripe. It happens when you delete an app, only to restore your latest backup or connect your iPhone to iTunes, and lo and behold, the app pops back on your home screen. What is going on?
What happens is that when you back up your iPhone to iCloud, Apple's online storage service doesn't completely remove the app data, just in case you have it installed on another iOS device. For example, you may want to remove Facebook from your iPhone, but leave it on your iPad.
But maybe you're ready to remove that app. That's where these steps come in for permanently deleting an app from all of your devices.
Start with your iPhone or iPad
Step 1: Lightly press down and hold the app until it starts wiggling. If you press too firmly and your iPhone has 3D Touch, you may open the Share menu instead. If so, just tap outside the menu and try again with a lighter touch.
Step 2: Tap the X in the upper left-hand corner of the app.
Step 3: A box will appear that says "Delete [name of app]? Deleting this app will also delete its data." Tap Delete.
Step 4: Tap Done (for iPhone X and later) or press the Home button (for iPhone 8 or earlier).
Delete the app from iCloud
Step 1: Go to Settings and tap your profile (name).
Step 2: Tap iCloud.
Step 3: Tap Manage Storage. On this screen, you will see your current iCloud storage available.
Step 4: Select Backups from the list. You will see all devices that are currently using the iCloud backup storage.
Step 5: Choose the current iPhone you are using. Hint: It will say "This iPhone."
Step 6: You will see a small list of apps under Choose Data to Back Up. Tap Show All Apps.
Step 7: Find the app or apps you want to permanently delete and slide the white dot to the left so that the color changes from green to white.
Step 8: A window will pop up that asks "Do you want to turn off [selected app] backups and delete the backup data from iCloud?" Tap Turn Off & Delete.
Now your apps will be permanently deleted on your iPhone (and other iOS devices) and will never redownload when you sync your device to iTunes.
What if I delete an app I paid for?
If you delete an app you purchased and decide you want it back, you can always go back to the App Store and redownload the app at no additional charge. It's yours for life.
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