Detailed Storage Usage. You can see how much space
each chat is using on your device and clear the media of
individual chats from your cache, filtered by
file type.
Clearing your cache
does not delete any messages or media from your chats – they stay in the chat history,
ready to re-download when you need them.
The
Storage Usage page has several settings to
maximize storage space – like automatically
removing older media from your cache.