What is iCloud Photos?
iCloud Photos keeps your original photos and videos safely in iCloud. With the originals stored in iCloud, you can keep smaller versions on your devices to save space. iCloud also makes it easy to enjoy your photos anywhere, and from any device. If you add photos and videos on one device, they appear on all your devices.
You can access, store, and update your photos, Live Photos, and videos using iCloud Photos, Shared Albums, or My Photo Stream, and share them using a link in iCloud or Shared Albums.
iCloud Photos automatically stores every photo, Live Photo, and video you take. Through iCloud Photos, you have access to your photo library on iCloud.com, your iOS and iPadOS devices, your Mac, your Apple TV, and your Windows computer. See Keep photos up to date across devices with iCloud.
You can create Shared Albums and invite friends and family to post their own photos, videos, and comments. See Shared Albums in iCloud.
My Photo Stream
With My Photo Stream, you can access the most recent photos that you took with your iPhone, iPad, or iPod touch, or that you uploaded from your Mac or PC. See My Photo Stream in iCloud.
Note: My Photo Stream is not available for newly created accounts or the iCloud for Windows app (version 10).