First, zooming in on pictures just makes them grainy. I don't have this problem on the website. Second, it keeps draining my battery, even when I'm not using it. Third, you don't have the ability to search for tags like you do on the website. The mobile site is just better overall, and it's suspicious how often it gets flagged for draining batter (once or twice a day). The only benefit is that I don't have to pull up the website to see new content.