Why does your phone's memory free space change?

pu1. There are temporary files that the applications use, and they made those temporary files You can change the size because you erased it

2017-12-02

OK

pu2. If you use a message program such as Kakaotalk, the amount of messages keeps increasing, so the available space may be reduced. If you leave the room, there'll be more space available

2017-12-02

OK

pu3. Maybe it's a cache file or something. Cache files are files that are temporarily stored for speed improvement, etc

2017-12-02

OK