My iPhone 6 has been building up large amounts of documents and data (500 MB per app) Facebook, Twitter, Instagram, etc. Any fix for this?

My iPhone 6 has been building up large amounts of documents and data (500 MB per app) Facebook, Twitter, Instagram, etc. Any fix for this? - 1

DELETTE All THOSE JUNKS TO GET BACK SPACE.

Stop using social media.

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You have to delete the app and re download it