I was trying to download and app for the first time and found that it had to come through Google's Play Store. At the time I was not registered with any of the Google apps, basically because I don't use Google. I later found that in the Security Tab section of the setting there was a check box to turn off apps having to come through Play Store, but even checked it doesn't allow you to go around the Play Store. Is this a glitch or are is there another way to go around the play store.

To be honest I don't want to use Google for anything except their search feature.

Thanks in advance.