问题
I did big mistake with monetisation my app in Google Play. I separated my app to 2 versions (with different applicationId), but now I would like to have one app with in-app purchases to Pro version or something like unlocker. I have a lot of downloads my pro version app so I can't just remove it from Google Play. Does anyone faced with this problem ? Any workarounds ?
回答1:
You can definitely integrate both apps ( Search on stackoverflow for integrating both apps ), but that will not solve your paid users approach.
Here is what I would do
STEP 1 : Implement in-app purchase in FREE app ( Test it - make it live )
STEP 2 : Update prod app ( Show message to users to migrate to FREE app ). Since you have only paid users- it's safe to give each user a promo-code, you need to work on some logic in paid app for creating such unique codes per user - see this link for creating promo codes which can be redeemed once https://developer.android.com/google/play/billing/billing_promotions.html#workflow
STEP 3: All Paid users redeems promo codes in free app.
STEP 4 : Remove paid app from google play store
PS : If you have local files , data etc with paid users, you still need to migrate them to free app, you can use shared resource, server side coding or simply using ContentProviders
I don't think there is any other easy way to do this.
来源：https://stackoverflow.com/questions/42373388/migrate-from-free-and-paid-versions-app-to-one-app-with-in-app-purchases