Why does my iPhone free space go down so fast

My iPhone free space has gone down from 8.45mb left to 8.43mb and all i have done is put 3 songs on? I know it shouldn't do this because it never used to?

0.02Mb for 3 songs is about right, you can't put stuff on there without taking up memory space.

The more stuff you put on your phone the more memory it uses. So the 3 songs you have out on your phone is using 0.02mb which is about right.

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