When your iPhone backs up to iCloud, does it overwrite the previous back up?
By that I mean, if I have 25gb of storage left on iCloud and I do a back up of 1gb, obviously the storage goes down to 24gb. But what happens if the next back that I do is 1gb, does if overwrite the first back so that the iCloud storage still shows 24gb or does it go down to 23gb?
The reason I am asking is because I've just realized that my current iCloud plan is the 25gb for £28 a year and I'm wondering if the free one(5gb) will be sufficient for iPhone backups to iCloud?
By that I mean, if I have 25gb of storage left on iCloud and I do a back up of 1gb, obviously the storage goes down to 24gb. But what happens if the next back that I do is 1gb, does if overwrite the first back so that the iCloud storage still shows 24gb or does it go down to 23gb?
The reason I am asking is because I've just realized that my current iCloud plan is the 25gb for £28 a year and I'm wondering if the free one(5gb) will be sufficient for iPhone backups to iCloud?