问题
So Ive decided to turn my free app into a paid app, the question I have is how does this affect people who previously downloaded my app, for example If I release an update in the future will the people who already dowloaded the app when it was free have to pay to download the update? this I would like to avoid as I dont want bad ratings in android market, thanks in advance!
回答1:
Once an app is free on the Android Market it cannot be made a paid app. You can unpublish it, and you can publish the app under a new package name for a fee, but your existing users will not auto-update to it.
回答2:
@mah is right, though there is a way around that limitation - instead of replacing your free version with a paid version, you could implement in-app purchasing to license the additional functionality. Now, you can have the free, limited version and it is simple for the user to upgrade within the app to the full, paid version.
来源：https://stackoverflow.com/questions/9693918/changing-app-from-free-to-paid-in-android-how-does-this-affect-previous-downloa