No because they are totally different.
No. Injustice is not available on the amazon app store at this time.
The Google Play Store and Amazon App Store.
Yes, Android mobile has their own mp3 store. You can get mp3 in the android market or you can download a third party app like the amazon cloud player.
All you need is to visit the app store (Amazon Appstore or Google app store) and choose from a wide variety of applications.
You might not have the Amazon App Store app that you may have downloaded your apps from. You will have to get that particular app from Amazon directly, as it is not available on the Google Play Store. Any updates on apps you got from the Amazon App Store will only come from there. Or, if the apps you are looking for are already in the Google Play Store, you may just start over and get the same apps from there instead.
The Android app store on Android 4.1+ is called the Google "Play Store" And it's icon resembles a shopping bag with a triangle on it.
I've had it from both the iTunes app store and the Android/Google Play market, and it was a free download in both instances.
Yes, but somewhat modified. The basic OS is Android; you call tell because the Amazon App Store's "Kindle Apps" will almost always support other Android devices.
Android does not have one built into them. However you can download the app from whatever app store comes with your smartphone.Ie - Samsung App Store for Samsung Galaxy phones and so on.
Yes, you can download it from the app store
Yes, but somewhat modified. The basic OS is Android; you call tell because the Amazon App Store's "Kindle Apps" will almost always support other Android devices.
No