Get tips and tricks for downloading and using the iPhone apps available on your tablet in this free lesson.
You may be used to running several programs at the same time on your computer, which is also known as multi-tasking. On the iPhone, multi-tasking works a bit differently. Although you can't use several apps at the same time, you can easily switch between apps without going to the Home screen. For example, you might be browsing in Safari and decide to send a message through the Mail app.
To make multi-tasking as seamless as possible, your iPhone will keep recent apps paused in the background. When you switch to a recent app, you won't have to wait for it to load. You can simply pick up where you left off.
When you switch to the Home screen, the app you're using doesn't actually close; it just remains paused in the background. However, if an app stops working correctly, it sometimes helps to force the app to close. This is similar to force-quitting an unresponsive program on a computer.
Keep in mind that you don't need to close apps this way unless there is a problem. Because the apps are paused, they won't slow down your iPhone or drain the battery.
The iPhone also uses a feature called Background App Refresh to update certain apps in the background, which can have a small effect on your battery life. If you prefer, you can turn off Background App Refresh for some or all of your apps. To modify these options, open Settings, tap General, then select Background App Refresh.
To learn more about multi-tasking, review this support page from Apple on Understanding Multitasking.