Hey, I would like to port iPhone app to iPad. In the App Store I registered the iPhone app as com.mycompany.appname. Do I need a new AppID (developer.apple.com/ios/manage/bundles) for the iPad app to push it to the App Store if I want a different price for the iPad app?
Are you making a separate iPad app or are you going to make a universal app? That is, one purchase that has the iPhone and iPad version in the same package.
If you're going to make 2 separate apps, then you need 2 IDs. If a universal, app, then you just make 2 targets, no new ID necessary.
I do recommend going the Universal route, you may get a lot of bad reviews from customers who are pissed off when they are asked for more money for the iPad version.