You're not stuck with the Amazon App Store.

Obtainium update-ium are the magic words ...

The 12th-gen Amazon Fire tablet is the first device to ship with Fire OS 8, the latest version of Amazon’s tablet operating system, and it’s now available from Amazon for $60 and up. While Fire OS ...

Google Play Store can now download, install, and update multiple Android apps simultaneously. Previously, if you attempted to run all your updates manually, Play Store would only process a single app ...

If you own an Amazon Fire Tablet, you will be restricted from using the Amazon Appstore, but it runs on Fire OS, which is a custom version of Android. That means that you can install the Play Store ...