[mcguire]

You are aware that you cannot purchase ebooks through the Amazon apps on Android, right?

What you say may be true today, but tomorrow is unknown territory as far as these sorts of agreements go.

[ThatPlayer]

I can purchase ebooks on my Amazon Kindle Fire that runs Amazon apps on Android fine.

I bet I would also be able to purchase ebooks on the Amazon Kindle app installed from the Amazon Appstore on my Google Pixel phone.

[zik]

Your bet would be wrong - they stopped allowing that a little while back. It's annoying.