Hi, I have an app published to applab and sold some copies, and its using up front payment for user to purchase.
Now I want to change it into free to play but in app purchase available..
I still want my existing users to have full access to content since they already purchased.
How can I achieve this in unity? Or should I just add new content as IAP?
PS. I am thinking maybe check the entitlement date of user and decide to hide/show contents.. but can't find the proper API for checking.