Submitting your iOS app to the U.S. App Store is a tough process that demands attention to detail and compliance to Apple's guidelines. Before taking this journey, collaborating with a proficient iPhone app development company is essential in building an app that shines, regardless of whether you choose and compare Objective-C vs Swift as your development language.To start, enrol in the Apple Developer Program, opting for an individual or organization account based on your needs. This grants access to vital resources and distribution avenues. As you prepare for submission, gather all necessary app assets—icons, screenshots, descriptions, and promotional materials—that will serve as the face of your creation.

The pivotal point comes with App Store Connect, Apple's platform for managing submissions. Here, you'll craft a comprehensive app listing, providing crucial details like app name, description, keywords, and categories. The pricing model, whether free or paid, is a decision to make, alongside setting appropriate pricing tiers. However, don't overlook Apple's App Store Review Guidelines, a document outlining content, design, functionality, and privacy standards that your app must adhere to avoid rejections. Rigorous testing and optimization of your app across diverse devices and iOS versions are vital to ensure a seamless user experience and prevent post-launch pitfalls.

The submission follows, conducted through the App Store Connect interface. Uploading app assets, screenshots, and other relevant materials is crucial at this stage. Providing accurate metadata, including keywords, boosts the visibility of your creation. The subsequent app review process by Apple might take several days, during which patience and preparedness for additional information or required changes are essential. Upon approval, the launch phase begins, necessitating effective promotion strategies through various channels to garner maximum downloads. Collaborating with your chosen iPhone app development company to develop a well-rounded marketing strategy tailored to your target audience is key.

Remember, post-launch maintenance is as crucial as the initial submission. Continuously monitor user feedback and app performance, while routinely updating your app to enhance user experience, fix bugs, and introduce new features. Whether you embraced the comparison, the ongoing responsiveness of your app is paramount for user satisfaction and positive reviews, ultimately solidifying your app's place in the competitive realm of the U.S. App Store.

You can also explore How to reserve the name for my iOS app before publishing it?, to know more about it.