I have Kindle Fire tablet. Google apps have to be side loaded or you have to get the Amazon version of the app if there is one. Sometimes Google apps work fine on Kindle and sometimes they don’t. This is because Kindle OS isn’t pure Android. I don’t know how it works with paid apps. The last time I tried to get Google Play Store on my Kindle it didn’t work.
The few apps that I’ve side loaded from Google, I first put on my phone, made a copy of the apk using Astro File Manager and then transferred the apk to Kindle for side loading.:
Above is the link for the Beta version, apparently the Non-Beta got a bad update. I see a lot of complaints in Google Play Store.
Under Settings you’ll see App Manager, this is where you can make apk copies or as it’s called backups. Once the apk is backed up you will then need to transfer it to the tablet for installation, best place is putting it in Download file. Once the apk is transferred to Amazon tablet, you need to go into Settings and turn on Allow Outside Sources. Use file manager app to get to location of apk and give it a tap. If a package installer doesn’t appear, then you will need to install a packager installer. In the Amazon store there are a few free package installers. Once the apk is installed you need to restart the Amazon device.
Remember there is no guarantee that the app will work. As I mentioned sometimes they do and sometimes they don’t. Had one app that worked but it was very buggy and wasn’t worth the trouble.