The preinstalled Amazon app on my HTC 10 is on version 8.2.100 and doesn't update. Whenever I use it, I get the prompt to update and when I click on the button to do so, it just opens another page in the app but doesn't give me an update option. From what I can tell, this app is actually the Amazon Underground app from a while back. Installing the Amazon shopping app from the Play Store (version 12.xx) doesn't remove or change the preinstalled app either. Does anyone have the same issue or a solution for this? Thanks.