We all think that if we close all of the apps on our phone that it will make our battery life last longer or our phone charge a lot quicker.
When you double tap your home button to swipe up and close apps, you may not want to close your WhatsApp one.
Apparently a lot of people are getting alerts from the app saying that closing the programme will in fact stop you from receiving notifications.
This is what people are getting:
So if you want to keep receiving notifications, you might want to avoid closing the app - just in case.