No, you don't need an Apple developer account to publish your app on App Store. When you sign up with us, you enter into a contract with Zappter AG to develop your customized mobile app. Hence, as your development partner, we own the code and the binary/app to publish your app on App Store with our Apple developer account. When you work with commercialized template providers and app generation services who mass produce cloned apps of templated versions, Apple guidelines require that customers submit their apps with their own Apple developer account for publishing. Unlike other app builders, Zappter is based on the idea that anyone can create their own unique app, without code. The customization options are unlimited and simplify "code" into an interface that everyone understands.