Learn how to clear WhatsApp cache files on iPhone, Android phones, Windows PC and Mac. Is it safe? What happens when you do it?

Cache is useful for optimizing system performance, doing so by 'designating' frequently accessed files for quick access. Here's how to clear the cache on your iPhone (and, by extension, your iPad).

If you use Spotify a lot on your iPhone, for the best performance, you may need to clear the cache sometimes. Here's how to ...

How to View Your iPhone Photo Cache. Photos synced with your iPhone through iTunes often aren't optimized for display on your device, so a conversion process occurs when you sync new photos ...