Ok, todays top free android app is an awesome one. This was totally something that I needed that I didn’t know I needed until I saw it.
What Vaulty does is allows you to take pictures, and instead of it going into your normal gallery area where anyone with access to your phone can see them, it goes into a special password protected area within Vaulty.
Now, if you have some questionable pictures that you don’t want your kid, or your wife, or your girlfriend, to be able to see, you don’t have to worry about it. I’m not going to tell you how to use your vaulty, lol, what happens with your vaulty stays with your vaulty 
Worth a look if you are concerned about the security of the photos on your telephone. Maintain maximum privacy with minimal effort. Awesome. I’m even considering purchasing the paid version. Go get the free version of vaulty for Android here: https://market.android.com/details?id=com.theronrogers.vaultyfree