Like most apps on your phone, WhatsApp stores data in a temporary cache, designed to make the app run faster should it need that information again the next time you run WhatsApp. That generally works well and makes your phone seem to run faster and more smoothly, but the cache can get quite large.
You might need to clear the WhatsApp cache, either to save storage space on your phone or to troubleshoot a problem. Either way, you can easily clear the cache.
How to clear the WhatsApp cache on Android
If you need to clear the cache in WhatsApp on your Android device, you can do it with just a few taps in the Settings app. Be aware that the exact steps might vary slightly depending on which brand of Android phone you have and which version of the Android OS is installed. Even so, you can follow these general guidelines for most devices.
1. Start the Settings app and tap Apps.
2. Tap All apps. After a moment, you will see a complete list of all the apps installed on your phone.
3. Find WhatsApp in the list and tap it.
4. Tap Storage & cache.
5. Tap Clear cache.
6. Tap Clear storage and then, in the pop-up window, tap Delete.
How to clear the WhatsApp cache on iPhone
You can clear the WhatsApp cache on your iPhone, but iOS doesn't include a one-tap way to clear the cache in the same way that Android does. The only way to clear the cache is to uninstall and reinstall the app. This is very straightforward to do — just delete the WhatsApp app and then reinstall it from the App Store. Of course, you will need to log into your WhatsApp account again after reinstalling the app.
