[lathiat]

it does it for you, if your phone starts getting full you'll notice apps randomly switch icon and name to Clearing or something like that quite a bit.

[roflchoppa]

the issue that ive found when i was troubleshooting clients phones for "where is all my storage" is that the system does not automatically remove cached files like music/ spotify offline etc.

i never have seen the clearing text on my iPhone, although i figured it would be automatic.

[CamperBob2]

Wow, I remember when you had to do this yourself on your Apple, with x = fre(0).

[donutz]

Can't tell if testing my gullibility or you actually believe your phone does this. :-/

[kgwgk]

https://marco.org/2011/10/13/ios5-caches-cleaning