This is really a fairly old topic which has been discussed many times an many threads. But yes, those of us with access to Kindle apps on various platforms will tell you that the most advanced mobile app for Kindle is by far the iOS app. I love the Kindle for iOS app and use it almost exclusively for my reading on my iPhone and iPad. I no longer have an Android tablet, but still have an Android phone but it sits retired on a shelf. The Kindle for Android app was not that good on my Motorola Atrix 4G. It is much better reading on my iPhone with the Kindle for iOS app. To be honest, there is no comparison between Kindle for Android and iOS as the iOS app is a generation or two ahead. I personally hope it stays that way as I'm done with Android.