Spotify cache on 5109MB on internal SD, 4464MB on external SD Spotify takes up about 10GB data on my phone. Half of this is used on the internal SD card, which is becoming a problem. I've had this problem before, have removed Spotify entirely, after which it started to use the external card. Since a while it has apparantly changed its mind, and now prefers the internal storage. 

I don't mind that Spotify uses the internal storage for settings or for temporary cache, if that is necessary. I don't mind if that takes up 1GB, but I don't want this. Now I have to download 10GB music, which is a waste of time. Plus I lose the local settings, which albums I want to have locally. 

When I look at the app specs in the Android settings menu, I see it reports 9.42 GB on the external card, and 1.48MB on the internal one. That seems like a bug?!

Why does this happen and how can I force Spotify to use the external storage exclusively?
I ended up deleting Spotify completely. I reinstalled it, and now have downloaded 3GB of data. 

I usually download several playlists and albums to avoid downloading them repeatedly. I don't know why I ended up with two caches on internal and external SD, and I don't even know if both of them were used or if this is a bug. 

Now the internal cache is empty or very small, and external is 3GB. This is still less than either of the old caches, but that's because Spotify forgets which albums I downloaded before, and the current set is not exactly the same.