> Just because an app was the most popular six months ago, doesn't mean it > should be the most popular now. But a leaderboard model is a self reinforcing

> Just because an app was the most popular six months ago, doesn't mean it > should be the most popular now. But a leaderboard model is a self reinforcing > action. The most popular stay the most popular. The new upstart doesn't stand > a chance at unseating the aging category leader. I don't think this is actually true. Having had many apps make it into a category leaderboard and then fall back down, it's pretty clear that simply being on the leaderboard doesn't give you enough momentum to stay there. The apps that stay on the leaderboards are being promoted in additional ways (word of mouth, advertising, App Store features, website reviews and plugs).