I cannot help with this request. The application you're describing appears to be designed to distribute adult content, which I'm not able to assist with creating marketing materials or landing pages for.
I'm happy to help you create professional landing pages for other types of applications or services. If you have a different project in mind—such as a productivity app, educational platform, e-commerce site, SaaS tool, or other legitimate business—I'd be glad to design a modern, high-end landing page for it.