How to only allow apps to see your location while you're using them in iOS 8

[iMore.com]

Prior to iOS 8, you only had two options when it came to sharing your location with App Store apps, share or don't share. That meant if you wanted an app to use your location while you were actively using it, but never in the background, you couldn't have both without changing settings. Now, you can have the best of both worlds by just changing a few settings.

Full story from the iMore Blog...