Interactive web experiment
iPhone Duo Vercel App: Interactive Folding Study
The iPhone Duo Vercel app is a browser-based folding-phone study that turns Apple’s iPhone Duo model into a controllable React and Three.js interaction. This guide explains what the demo does, how to use it, what is reusable, and where its licensing limits begin.
Independent project: This demo was created by developer jal-co. It is not an Apple product, an official Apple app, or an official ToolAtrium product.
iPhone Duo Vercel app at a glance
- Format
- Interactive 3D web demo
- Core stack
- React 19, Three.js, and Motion
- Controls
- Drag, click, range scrubber, and Tune panel
- Source
- Public GitHub repository
- Access
- Free to open in a modern browser
Quick verdict
Use the iPhone Duo Vercel app as a focused interaction and front-end engineering reference. It is useful for studying a polished fold transition, but it is not an iPhone simulator, a device configurator, or a reusable package with every asset cleared for redistribution.
What is the iPhone Duo Vercel app?
The iPhone Duo Vercel app is an independent folding-phone design study hosted on Vercel. The page presents a 3D iPhone Duo model in a dark studio scene and lets visitors move between closed and open states instead of watching a fixed product video.
Its value is the interaction itself. The phone halves rotate around a shared hinge while screen layers blur, slide, scale, and settle at different moments. That staged motion makes the transition feel more physical than a basic 3D rotation.
What can you do in the interactive demo?
The main iPhone Duo Vercel app controls are visible without signing in. You can drag across the phone, click the device or Unfold control, or use the fold-angle scrubber to inspect intermediate states. Three wallpaper choices change the screen treatment.
A Tune panel exposes motion duration, blur, parallax, lighting, backgrounds, and screen-image controls. The repository also documents keyboard-accessible controls and reduced-motion behavior, which makes the experiment more useful as a front-end reference.
- Drag or click to fold and unfold the model.
- Scrub the range control to pause at a specific transition point.
- Change wallpapers and adjust visual parameters in the Tune panel.
- Inspect the public source instead of reverse-engineering the rendered page.
How is the iPhone Duo folding effect built?
According to the project documentation, the demo uses React 19 for composition, Three.js for the prepared 3D model and screen shaders, and Motion for transition state. The cover and inner display use separate texture layers so blur and incoming content can be animated independently.
The source is structured as composable React parts such as FoldablePhone, PhoneDevice, FoldToggle, and FoldScrubber. Developers can study or copy the component directory into a React project, but the repository is source-distributed rather than published as an npm package.
Licensing and practical limits
The repository says its source code and original SVG screen artwork are MIT licensed. Apple’s 3D model, embedded model textures, and desert wallpapers are third-party assets and are not covered by that MIT license. Anyone reusing the project should read the repository’s third-party notice before shipping or redistributing assets.
The iPhone Duo Vercel app is also not a functional iOS environment. Screen content is rendered into WebGL textures, so the icons and panels inside the phone are visual layers rather than real apps. Treat the project as an interaction study, not a browser emulator or product-spec authority.
Who should try this iPhone Duo demo?
The demo is most relevant to front-end developers, motion designers, creative developers, and product teams exploring foldable-device storytelling. It offers a compact reference for staged motion, pointer interaction, accessible controls, shader-driven screen effects, and a high-fidelity product presentation.
For general buyers researching the real iPhone Duo, Apple’s official product and technical pages are better sources. For developers evaluating the experiment, the live Vercel page and the public repository should be reviewed together.
iPhone Duo Vercel app FAQ
Is the iPhone Duo Vercel app official?
No. It is an independent design and engineering study by jal-co, not an Apple product or official Apple application.
Is the demo free to use?
The live demo can be opened without payment or account creation. Reuse of its code and assets remains subject to the repository licenses and third-party notice.
Can I use the component in a React project?
The README documents copying the component source into a React project with Three.js and Motion dependencies. It is not currently distributed as an npm package.
Does it simulate real iPhone Duo apps?
No. The content shown on the displays is rendered as WebGL texture layers and is not an interactive iOS environment.
What should I check before redistributing it?
Read the repository license and THIRD_PARTY notice. Apple’s model, textures, and wallpapers are not included in the project’s MIT license.
What browsers work best?
Use a current browser with WebGL support. A desktop viewport gives the clearest access to the fold controls and Tune panel.
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