GuestMode cydia tweak gives you the ability to share your device freely and still protect your privacy.
Let the kids play games on your device without worrying about them looking at your messages/calling people. Let your friends control your music, but not snoop through your photos or Safari tabs. You choose exactly which apps are accessible and which ones aren’t.
Multiple ways of enabling GuestMode including:
Provides a fully customizable guest experience that keeps you in charge. Compatible with all devices on iOS 7. Check out the screenshots for an example of some of the features.
Configure options from Settings.