Private browsing in iOS

I've noticed Safari in iOS lacks a Private Browsing feature (is there any open and aboveboard use for Private Browsing?). Some solutions are:

• Use another browser
• Force quit Safari so it doesn't save history

However, the first option wastes resources and the second is risky if you forget. I was wondering, since many apps on iOS have built-in browsers, and they don't seem to save histories, maybe they could be used for private browsing? I'm sure most iOS devices will have at least one app with a browser, such as the Facebook app.