Achievement total is off

I'm not sure if this is a bug or not, but my achievement total on this site is slightly higher than what TA says I have; in fact, the difference is the exact amount of app achievements that I have unlocked according to this site.

I'm going to guess that is intentional between both sites. Because TA doesn't stat track the app achievements, I'm guessing that it only shows the game achievements in your total on your profile. Looking at my profile here, I see more achievments, but if I filter out the app achievements, the totals match between sites.