Can I lock my photo app on iPhone 5?

I want to lock my photo app I don't want to use another app and have to import my photos because they stay in the photo stream and camera roll I just want to put a password on the app is there any way to do that. I know you can do it if its jail broken but my iPhone 5 is new with the new iOS update so I can't jailbreak it please help

Try applocker.