iOS 7 seems to be killing apps too often
iOS will kill apps if it needs to.

There's not really much you can do about it, without jailbreaking. iOS will automatically manage an app's memory, and will kill an app if another app requests more memory. Also, apps using a large amount of CPU will cause iOS to kill other apps so that the foreground app always has the best experience.

If you find that it's killing apps more than it should be, try using apps with less memory usage. For example, try only opening one tab in Safari, then switch apps and switch back. It should be less likely to be terminated if it has less tabs open since there will be less memory usage.

For more information about multitasking, see:


iOS: Understanding multitasking