Download Appvn from this link.
https://m.apkpure.com/appvn/app.hunter.com
Then Install.
After Installing you can go now to google play and find your desired paid apps.
Find the share icon.
Choose Appvn.
Once you're in appvn app. Just Click download.
and when this appears.
Just tap close then your done. The paid app is now downloading. Enjoy.