Will clearing cache in an app make me lose data or memory?

I need to clear up space on my iphone and I keep reading about clearing cache. If I do that will I lose progress on a game, for example, or will I basically be resting the app? Basically will I notice a difference if I do clear my cache?

It won't affect apps

No, but don't remove unwanted files with it, as it may lose you some of your precious data and in case you need to install Leo Privacy Guard is all you need. It can hide images and videos and lock applications. You could either lock your messaging app or you can also use its Private SMS feature through which your sms will not be seen in the system's sent folder. Like this you can secure your device totally.

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