Mobile App Promo Video Creation

I need an engaging promotional video that will spark interest and drive downloads for my new mobile app. Starting from the brand guidelines, logo, and screen recordings I’ll supply, I’d like you to:

• Craft a concise script and storyboard that highlights the app’s key value.
• Design smooth motion-graphics or device mock-ups to showcase core screens.
• Add upbeat royalty-free music, sound effects, and professional voice-over or on-screen text.
• Edit everything into a polished clip (both portrait 1080×1920 and landscape 1920×1080), exporting the final MP4 plus the editable project files.

The tone should feel fresh, modern, and trustworthy, with a clear call-to-action at the end. Please share relevant samples from past mobile or tech promos and outline the tools you’ll use (After Effects, Premiere, DaVinci Resolve, etc.).