Final answer:
To clear app cache on an iPhone running iOS 16, go to Settings > General > iPhone Storage > select the app > Offload App > Delete App > Offload App.
Step-by-step explanation:
To clear the app cache on an iPhone running iOS 16, follow these steps. Open the Settings app, scroll down, and select 'General'. Tap on 'iPhone Storage' and choose the specific app you want to clear the cache for. On the app's storage page, tap 'Offload App'. A pop-up will appear, giving the option to either keep the app's documents and data or delete them. Opt for 'Delete App' to completely clear the cache. Confirm the deletion by tapping 'Offload App'. This process efficiently eliminates the app's cache, freeing up valuable storage space on your iPhone.
Regularly clearing app caches is a good practice to maintain optimal performance and prevent unnecessary storage consumption. Keep in mind that clearing the cache may require you to sign in again or download certain data when you use the app next, but it helps ensure your device operates smoothly.