The app is currently available in Amazon App Store for all compatible Amazon devices with the Android system with minimum SDK version of 21. The Android App is developed also for the Google Play Store where the app can be downloaded and installed for supported devices.
CURRENTLY IN THE AMAZON APP STORE
Code version 5.4 is online coming soon in the Amazon App Store; this update brings the app dedicated to Amazon devices to customize better the user experience, from this update the Android app for Amazon devices can be downloaded only from Amazon App Store. Available for 7 screen layout, 86 languages,+150 devices with a min API level of 21 for 4 native platform arm64-v8a, armeabi-v7a, x86, x86_64. Ready for Android11 (R) or lower.
(V.5.3) August 2020 – Production Release [download] [AmazonAppStore]
Code version 5.3 is online in The Google Play Store and in the Amazon AppStore. Available for 7 screen layout, 86 languages,+12.000 devices with a min API level of 21 for 4 native platform arm64-v8a, armeabi-v7a, x86, x86_64. Ready for Android11 (R). Released is compliant with 64-bit architettures.
The version 5.3 brings the app to a lot of new Amazon devices (like FireTV) with new OS based on Android (Like Fire OS) into the Amazon App Store; more than 130 devices are now supported in the Amazon AppStore. Released both in the Google Play Store and in the Amazon App Store (as variant).