A good primer on what you need to know about switching to Android from iOS. It’s also unintentionally a good list of reasons why most people won’t.
Some of these apps download a LOT of unnecessary data just because someone was too lazy to scale down a jpeg.
That’s bad enough, but Hunt also points out that users have no way of knowing if an app is submitting data securely. You expect something like a bank app to submit information securely, but that isn’t always the case.