Keeping your family photos safe from device failure is the primary reason backups exist. iCloud claims to back up all your photos “in the cloud,” but the way it works varies depending on what settings you have enabled.
My Photo Stream vs. iCloud Photos
“iCloud Photos” does what you’d expect—it stores all your photos in iCloud. Whenever you take a picture on your iPhone, it immediately uploads to iCloud where it’s backed up even if you break your phone. iCloud Photos will also send all the photos you’ve taken to your Mac, and any other device you have connected to iCloud so that everything is synced up. This is assuming everything is connected to the internet, and you haven’t turned off iCloud Photo Library using cellular data.
iCloud Photos is great but has a major issue: storage space. The free iCloud data plan only gives you 5 GB of storage, which is extremely small, even compared to other free storage plans from services like Google Drive. You can fit about 1600 pictures in 5 GB of space, but that doesn’t include videos and everything else you have stored in iCloud.
When your storage is full, iCloud Photos will stop working. It fills up fast, and when it does, you’ll be pestered with notifications asking you to upgrade.
“My Photo Stream” tries to solve this issue. It will only store the first 1000 pictures taken in the last month, and remove old pictures from your Photo Stream. This gives your Mac or other devices enough time to sync with iCloud, backing up your pictures on your other devices. Your pictures won’t be stored in the cloud, but you won’t have to back them up to your computer manually. If one of your devices breaks, you’ll still have all your photos on your other devices.
So as long as you don’t break all of your devices at once, My Photo Stream will still ensure you have copies of your photos. The main problem with it is that when you get a new device or upgrade your phone, your pictures won’t automatically download to that device, because My Photo Stream only stores the most recent photos. You’ll have to manually load the photos onto your new phone from your Mac, and if you don’t have a Mac, you’re out of luck unless you have enough space in iCloud to turn on iCloud Photos.
Which Should You Use?
Read the remaining 8 paragraphs
Source : What’s the Difference Between My Photo Stream and iCloud Photos?
