One can acquire the free app Advanced Task Killer or ATK on sites such as Amazon. This app will help in ending tasks that you may not even be aware are running.
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u do it bygoing on free apps or the lite of an app
you can get quiet a lot of free games from the app store but there are to many to name so i will give you this one app that is free and it searches for free apps and games and limited time offer on them that make them free. the app is called 'free app tracker'
You buy a qr code reading app in the app store/ android market. They are free! (There will be many options, but I think all of them work.) After you purchase the app, open it, point your camera at the qr code, and it should scan it and open up the link.
If the app was free you can just down load it again from the app store If it was a paid app it should download on to your i device after syncing to your computer However if you are pc free you might not be able to download it again
No