iPhone - Sync between iPhone Settings and Settings in App

I've a requirement where I'll have settings bundle which will show app in iPhone Settings. 开发者_C百科Also Application itself will have a settings page. Both App in iPhone settings and Application settings will show same info. I know how to read settings bundle details and update in application settings. But how to do it in other way. Means, when user updates something in application settings, how can i change in settings bundle so that it will reflect in iPhone settings?

Is it possible?

There are several packages out there that will make this easy. In App Settings Kit is the one I have heard the most about.