When you turn on iCloud for an app, its information is stored securely in iCloud and kept synced across your devices automatically. When you turn it off, the app will no longer connect with iCloud, so your data will only exist on your device. You can choose which apps on your device you'd like to use iCloud, or turn off iCloud completely.
Choose which apps to use with iCloud
Find out how to find your iCloud settings on your iPhone, iPad or iPod touch, Mac or PC.
On your iPhone, iPad or iPod touch
- Go to Settings > [your name].
- Tap iCloud.
- Tap to choose which apps you want to use iCloud.
On your Mac
- Choose Apple menu > System Preferences, then click Apple ID. If you're using macOS Mojave or earlier, you don't need to click Apple ID.
- Click iCloud.
- Select or deselect each app.
Some features aren't available or may be listed differently in earlier macOS versions.
On your Windows PC
- Open iCloud for Windows.
- Select or deselect each app. Find out more below.
- Click Apply.
Some features aren’t available on your PC, or may be listed differently, depending on whether your computer has Microsoft Outlook 2016 or earlier installed.
iCloud Mail, Contacts, Calendars and Reminders
If you have Outlook installed, use iCloud Mail, Contacts, Calendars and Tasks in Outlook. If you turn off Mail, Contacts, Calendars and Tasks, the iCloud information will remain available in Microsoft Outlook, but it isn’t updated on iCloud and your other devices.
If you don't have Outlook installed, use iCloud Mail, Contacts, Calendars and Reminders in your web browser on iCloud.com.
iCloud Reminders are called Tasks in Outlook 2016 or later.
If you select Bookmarks, and your computer has Google Chrome or Mozilla Firefox installed, click Options. Here you can select the Windows browser bookmarks you want to keep up to date with bookmarks in Safari on your iOS, iPadOS and macOS devices. Find out which browsers you can use with iCloud for Windows.
Turn off iCloud
If you sign out of iCloud or delete iCloud, iCloud no longer backs up the information on your iPhone, iPad or iPod touch. Find out more about what iCloud backs up. You can still back up your device from your computer.
To stop using iCloud on your devices, find out how to sign out of iCloud.
If you've turned on automatic downloads for music, app or book purchases, your purchases will still be downloaded to your devices.
- Before you turn off iCloud or any iCloud apps, make a copy of your information. If you keep a copy of the app's information on your device, that information isn't kept synced with iCloud.
- Find out what's stored in your iCloud Backup.
- Find out how to manage your iCloud storage by deleting information and backups.
- If you need extra iCloud storage, you can buy more.