Amazon calculates a product’s star ratings based on a machine learned model instead of a raw data average. The model takes into account factors including the age of a rating, whether the ratings are from verified purchasers, and factors that establish reviewer trustworthiness.
This is the Facebook app for the Amazon Kindle HD. It works but lacks many of the functions of the same app on my PC. It's OK for the road but not a satisfying experience. I wish they'd start over and fix it.
This app is okay, but I'd much rather use the full-site view on my smartphone to access more of the features (like editing and sharing). It's not that the app is bad, it's just not packed with the features I want.
Nice to have facebook on my tablet but it's not the greatest app. You can only see a few stories and pictures in your news feed so if you've been off all day you won't get caught up with all of your friends.