Best practices
Use your brand’s unique voice and tone in all the written communication you display.
Consider choosing an accent color.
Consider using a custom font.
Ensure branding always defers to content.
Help people feel comfortable by using standard patterns consistently.
Resist the temptation to display your logo throughout your app or game unless it’s essential for providing context.
Avoid using a launch screen as a branding opportunity.
Follow Apple’s trademark guidelines.
For the complete guidance, including worked examples and illustrations, see the canonical page: https://developer.apple.com/design/human-interface-guidelines/branding