I modeled this 3d UI / device in 3ds Max and now brought in Unreal Engine 5 for real-time visualization.

Woah, that's spectacular!

I used Google Stitch as the primary tool to design and build Sprout, a mobile habit tracker where every habit hatches a creature that grows with your streak. The entire project, five screens from onboarding to habit detail, was built using Stitch's streaming canvas generation, in-place AI editing, native HTML animation, and Netlify export.

My workflow was prompt driven. I wrote a detailed description for each screen, watched Stitch stream it to the canvas in real time, then used in-place edits to refine the creature illustrations, background colors, button shapes, and animation behaviors. The celebration screen and the dark habit detail screen went through the most iteration and the results exceeded what I expected from a single session.

On the platform experience, Stitch is genuinely fast and the streaming generation is satisfying to work with. The 3D creature illustrations it produced had real personality, I expected flat icons and got fully rendered characters. The main friction was component consistency, editing one element sometimes caused adjacent ones to regenerate, and the export works per screen rather than as a unified project. A component locking feature would make the workflow much smoother. Overall it is a strong tool and I can see it becoming a regular part of my prototyping workflow.

Project URL. https://stitch.withgoogle.com/projects/407525878633658092

This is a really impressive use case for Stitch. The idea of tying habit tracking to creature growth makes the experience feel much more engaging and rewarding than traditional streak-based apps. overall well thought Concept and then implementation 🙌