The tweak can be installed free by adding the http://rpetri.ch/repo source to Cydia. It adds two buttons to the Usage page of individual apps: 'Reset App' and 'Clear App's Cache'.
To access the usage details of an app, tap Settings from the SpringBoard, General from the Settings menu, Manage Storage from Usage menu, and then tap to select an app.
CacheClearer provides an easy way to free up space on your iOS device without needing to delete and reinstall apps.
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