Incorporate refined, unobtrusive branding. People use your app to be entertained, get information, or get things done, not to watch an advertisement. For the best experience, subtly incorporate your brand through your app’s design. Using colors from your app icon throughout your interface is one great way to provide context in your app.
Don’t let branding get in the way of great app design. Above all, make your app feel like an iOS app. Ensure that it's intuitive, easy to navigate, easy to use, and focuses on content. Even if your app is available on other platforms, avoid diluting your design by focusing too much on consistent branding.
Defer to content over branding. Showing a persistent bar at the top of the screen that does nothing but display brand assets means there’s less room for viewing content. Instead, consider less intrusive ways to implement branding, such as using a custom color scheme or font, or subtly customizing the background.
Resist the temptation to display your logo throughout your app. Avoid displaying a logo throughout your app unless it’s necessary for providing context. This is especially important in navigation bars, where a title is more helpful.
Adhere to Apple's trademark guidelines. Apple trademarks should not appear in your app name or imagery. See Apple Trademark List and Guidelines for Using Apple Trademarks.