https://www.sataware.com/mobile-app-development/clear-cache-on-iphone/
Cache files slow down the system process and applications because of the memory space it takes up in the RAM. So, we tell you how to clear the cache on iPhone.
What is the iPhone cache?
Clean cache memory is sometimes called Central Processing Unit memory because it is typically merged directly into the CPU chip or placed on a separate chip that has a separate bus associated with the CPU. Therefore, it is more approachable to the processor, and able to improve efficiency, because it’s physically close to the processor.
Open Settings, and scroll down to the fifth group of options. Tap trek.
Scroll down and touch ‘Clear History and Website Data’.
In the popup, tap ‘Clear History and Data’ to approve.
Tap Settings > General > iPhone Storage
