Smooth App Demo Video Compositing

I already have the core footage in which a phone is being used, along with MP4 screen-captures and a few static images from the app. Your task is to composite those assets onto the device so the interface looks like it was filmed in-camera—no visible edges, jitters, or mismatched colors. Because this will sit on our company website as the primary App Preview/Demo, it has to feel polished and believable: steady motion tracking, finger overlap where needed, consistent light reflections, and a final grade that blends everything naturally.

You will receive:
• the clean plate video (ProRes 422, 4 K)
• all app screens in MP4 and PNG
• a rough storyboard that shows the intended in-app sequence and timing

Please return:
• the finished composite in 4 K and 1080p H.264
• a version without burned-in graphics (for future updates)
• the editable project file (After Effects / Premiere / Resolve—whatever you use)

Acceptance criteria
• Screen stays locked to the device throughout the shot with no slipping or warping
• Edges masked under fingers and hardware bevels; reflections preserved or recreated
• Color and brightness match surrounding footage; no sudden exposure jumps
• File delivered within the agreed timeline and ready to embed on our site without further tweaks

If you’re comfortable with planar tracking (Mocha, AE, Nuke, etc.) and can demonstrate similar work, I’d love to send over the files so you can get started right away.