What is cached data?

Clearing app data is a little more drastic. You're wiping the cache, but also clearing any and all settings that go along with that app. You're basically starting that app over, from scratch, and it'll behave as it did the first time you installed it. This is generally a last resort type of thing. read more

Cached data is data that is stored outside of the database usually, in an attempt to speed access to data. It's stored in memory or in a nosql database like redis or mongo. The process to cache data is a check in the cache for that data, if it doesn't succeed, fetch it from the persistent data storage / database, then add it to the cache with a key ( for lookups ) so you can don't it later. read more

Why cached data exists. The main reason why cached data exists is to make loading time faster. So if the device already has the layout of the website saved in the form of cached data, it will not have to load that same data once again. This helps in quickening the process of loading the website. read more

Problem solving How (and when) to clear app cache or data on Android Apps sometimes can misbehave. If it happens to you, here's something to try. read more

But maybe you want to clear an app's cached data, either to regain some used space or to try to fix a misbehaving app. This is where you can do it. Just tap into the app, and then tap the"Clear cache" button. read more