Why do my apps keep quitting unexpectedly?

I have an iPhone 4S, and many of my apps will quit unexpectedly. I have looked for a software update and I don't have one. I don't know how I could fix this problem, any ideas?

They are bugs that need to be fixed by the company. Nothing you can do about it but report the unexpected crash to the company

There are three methods which may help resolve the issue.

1. Quit the app and launch it again
2. Restart your iPhone
3. Delete and reinstall

For more detailed instruction, visit: http://heresthethingblog.com/2012/04/17/3-ways-fix-crashy-iphone-ipad/