Privacy & storage

Clear reading & thumbnail caches

Free up regenerable caches while keeping original files, progress and bookmarks.

iPhoneiPad
Where to find it

Settings → Storage analysis → Cache

FileBox storage analysis and app cache list

What you can do

Free up regenerable caches while keeping original files, progress and bookmarks.

How to use it

  1. Open the Cache section of Storage analysis.
  2. Choose TXT, ebook, comic-reading or thumbnail caches, or clear all caches. Leftover temporary files can also be reviewed and cleared separately.
  3. Read the confirmation and complete cleanup.

Before you start

Ebook caches include converted content generated for MOBI reading; it regenerates as needed. To free a downloaded iCloud file, use Remove Download in its file menu rather than reading-cache cleanup. Clearing them does not delete original files, reading progress or bookmarks.