A cache stores a copy of information for reuse so an application or system does not always need to obtain or calculate it again. Players can cache images, guide data or other resources. Different caches serve different purposes, and removing a cache may cause fresh downloads without altering the original account or the source content itself.

A practical example
A channel logo can remain outdated after its source changes because a player still holds an older image copy. Refreshing the relevant image data can address that display issue while the channel's media stream and subscription details remain unchanged.
A common misunderstanding
Clearing a cache is different from clearing all application data. Read the device's actual option carefully, because a broader reset can remove saved settings or account information as well.
Related terms
Further reading
Stable technical definition. Editorial approach