I keep mentioning this to many of my friends, but if you’re one of those people obsessively “closing” apps in your multitasking tray, you can stop doing it. iOS multitasking is designed in such a way that you rarely, if ever, have to go into the multitasking tray and manually close apps.
Let me wrap this up by giving you a quick summary:
- If someone tells you that all the apps in the multitasking bar are running, using up memory or sucking power, they are wrong.
- When you hit the home button, an app moves from Active to Background and quickly to the Suspended state where it no longer uses CPU time or drains power.
- An app may request an additional 10 minutes of Background running to complete a big task before becoming Suspended.
- If memory is becoming scarce, iOS will automatically move Suspended apps into the Not Running state and reclaim their memory.
- Five classes of apps – audio, GPS, VOIP, Newsstand and accessory apps – and some built-in apps such as Mail may run indefinitely in the background until they complete their task.
Put simply: you do not have to manage background tasks on iOS. The system handles almost every case for you and well written audio, GPS, VOIP, Newsstand and accessory apps will handle the rest.