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Originally Posted by gettysburgfreak
1.) Does the iphone have an app to shut down applications that are constantly running? For my droid I had something called Advanced Task Killer that would shut down apps and help save battery life.
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There may an app for Jailbroken phones to do them all at once, but otherwise, you have to do it one at a time. Leaving apps on isn't supposed to use much battery life. It just keeps them in the state you left them. Most aren't really running in the background.
Double click the home button, then hold down one of the icons on the bottom. When they start wiggling, press the red minus sign.
Quote:
Originally Posted by gettysburgfreak
2.) Is there a way to set my phone so I only receive signal on US towers? I work near the Canadian border and don't want to be getting nailed in roaming charges. I had to set my droid to home only towers and that saved me but so far I cant find a way to do it with the iphone.
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You can turn off data roaming. I'm not sure if that's what you're looking for, though. settings --> General --> Network --> Data Roaming.