I have 2 Kindles, an iPhone and an iPad (latest generation) and I use the kindle app on them all. There's no issue with the iPhone and iPad - indeed there are t

I have 2 Kindles, an iPhone and an iPad (latest generation) and I use the kindle app on them all. There's no issue with the iPhone and iPad - indeed there are times when I prefer them. The Kindle is also much better (at times) than using the iPad