Help clearing memory on iphone 4?

I need space and i know apps like facebook store a lot of data, how do i delete the data and cookies from other apps (non-safari). Yes i know the sfari one but that only deletes the safari cookies and data

help me please and thanks

ios 7.0.2 (the latest one)

You could use a desktop app called PhoneClean. Does just that. Free also.

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