I already have a free version of my app in App Store. Now I want to add a completely new paid version of the same app (with extra features).
Is it required to implement In-App-Purchase or can I simply add the paid version as a new app?
I already have a free version of my app in App Store. Now I want to add a completely new paid version of the same app (with extra features).
Is it required to implement In-App-Purchase or can I simply add the paid version as a new app?
You can create a paid version of your app with no problem. It will get approved. So it's really up to you. But using in-app purchase makes it more convenient to the user. They will be able to switch to full version of the app without losing any data (like achievements for a game, or documents created with the free app).
If you look at the app store, you'll see both options. There are many free "lite" versions of an app, and the full versions which you need to pay for. In-App purchases are also common, yet they need more effort to develop.