The Storage "Used" does not add up I have iPhone 6s 64GB. I got 64GB because 16GB just wasn't cutting it. I didn't want to worry about memory being full. However last night out of nowhere, I got the message saying my storage is almost full.

Confused, because there was no way I used 55GB(actual storage) of space. So I headed over to my Manage Storage page, which had me even more confused.



As you can see, the apps that take up the most space are Photos, Spotify and Music. They don't even take up 10GB.. I added the Used storage by all the other apps and it does not even come close to 45GB. When I plug in my phone to my laptop, it says the storage is used by Documents &amp; Data.

Before you answer my question, I am aware that Safari and Chrome take up cookies and cache. I am also aware that other apps can have similar data. Even considering all that, there is just no way I am using 52GB.

Just what is going on?
I had something like this on my iPad. It turned out that when I streamed (rather than download to watch later) movies and TV shows it stored the data on the device but didn't report it.

What I had to do what log out of iTunes/iCloud and log back in again, this cleared all these cached movies and released the data back to me.