How to copy apk and data from old device to new device I purchased an app via Google's play store about a year and half ago.
Basically, I got a new phone, transferred data from my old phone to the new one. The app I'm referring to is there but as the "free version" without unlocked features.

The app isn't available in play store anymore, so I can't purchase it again.

Is there a way to transfer apk and data from the old phone, or am I out of luck?
There is an app called Helium, which sounds like what you're looking for. Supposedly, it moves app and app data between devices, which should include the recognition that you have the premium upgrade. It does, however, require a desktop to complete the transfer. There are other options like oandbackup and Migrate - Requires TWRP, depending on your level of experience and whether you can make certain modifications to both/either phone.