I have an app already hosted in iTunes app store which is a paid version.There are already several users who have purchased it already using the app. Now I want to make the same app, a free one with IAP enabled on some functionality. Will my existing user base who have earlier purchased the full functionality will be affected when they try to upgrade their app with this IAP version? Can I use the condition "PhonegapIAP --> if app purchased" then show full functionality to avoid that? If so, then should I use that condition after "store listing successful?" Please let me know.