Detailed Storage Usage.

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, as well as a maximum cache size on iOS.