How to Record an iPhone Duo App Demo

An iPhone Duo app demo has a new job: show what an app does while the device changes shape around it. A screenshot can show a single state. A useful demo shows the transition from the outer display to the inner display, what happens when the device is partially folded, and how the app keeps its controls understandable.

That makes the capture plan matter as much as the script. Apple’s developer guidance describes iPhone Duo as a device with inner and outer displays, a hinge, multiple poses, and layouts that can adapt to Split View. The right recording should make those changes easy to see without hiding the person explaining them.

Why an iPhone Duo screen recording needs more than a screenshot

The strongest demo answers three questions for the viewer:

• What does the app look like closed? The outer display is the first experience and may use a compact layout.
• What improves when the device opens? The inner display gives the app more room to show content, navigation, or a second pane.
• What stays consistent while the device moves? The viewer should understand where the important controls go and what state the app preserves.

Apple’s iPhone Duo design guidance calls out device poses, dynamic layouts, reserved regions, and Split View. Those details give an app demo video a clear chapter structure.

Plan the story around the outer and inner displays

Before opening a screen recorder, write the demo as a sequence of visible changes. A short, deliberate script will be more convincing than a long tour of every screen.

1. Start on the outer display. Show the first task a person can complete with the device closed. Keep the starting state clean so the viewer knows what to look for.
2. Open into the inner display. Explain what becomes possible with more room: a second pane, a wider canvas, a richer list, or a more comfortable editing surface.
3. Show one meaningful pose. Place the device on a desk or hold it partially folded. Choose a pose that supports the story instead of cycling through hardware positions for their own sake.
4. Trigger a layout change. Resize the app, open a split view, or move through a transition that proves the layout is responsive. Let the change finish before speaking over it.
5. End with the payoff. Return to the result the viewer came for: a completed task, a saved item, or a clear before-and-after.

If you are building the app as well as recording it, Apple’s Get ready for iPhone Duo hub is the right place to follow the latest SDK, design, and testing guidance.

Capture an iPhone Duo app demo with separate layers

A screen-only capture is useful for testing the app, but a launch-ready video often needs hardware context and a human explanation. ScreenDuo is designed around that separation: one device shows the screen, while a paired device records the camera or voice.

Once your device and OS are supported by your capture setup, use this sequence:

1. Prepare the screen device. Close unrelated apps, remove notifications, and set the app to the starting state. Decide whether the demo begins closed, open, or in a partially folded pose.
2. Frame the hardware. Use a second iPhone, iPad, or supported Mac camera to show the hands, hinge, and physical movement. Keep the camera angle stable so display changes are easy to compare.
3. Pair and test. Use ScreenDuo Connect over USB or local wireless when available. Record a short test that includes one close-to-open transition and one spoken sentence.
4. Record the full story. Capture the screen, camera, and voice in one take. If you stumble, pause and repeat the step rather than restarting the entire session.

The separate camera layer is especially useful for a foldable phone because it shows the physical action that a screen capture cannot: where the hinge is, how the device is held, and what changes when the two displays meet.

Show the app’s adaptation instead of relying on the phone’s novelty. The viewer should leave knowing what they can do on the outer display, what gets better when it opens, and why the transition feels intentional.

Edit one take into multiple iPhone Duo videos

The same recording can serve different audiences if the screen and camera remain editable:

• Developer launch video: use side-by-side framing so the device motion and interface change are visible together.
• App Store or product-page cut: keep the app large, use a restrained camera overlay, and make the first five seconds understandable without sound.
• Social teaser: crop around the hinge transition, add a short voiceover, and move quickly to the payoff.
• Support or onboarding clip: remove the presenter after the first explanation and let the screen steps carry the rest.

With ScreenDuo, you can trim pauses, resize the camera source, switch between screen-only and paired layouts, and export a clean MP4 without rebuilding the capture. That matters when the app is still changing and the demo needs more than one revision.

Prepare screenshots and video as one launch package

Video and screenshots answer different questions. The video should show motion and adaptation; the screenshots should make the app’s most useful states easy to compare. Apple maintains current screenshot specifications for App Store Connect, so check the required device sizes before exporting final store assets.

For a consistent package, use the same starting data, typography, and terminology in the demo and screenshots. If the video calls a view “Projects,” the store images should use the same name. A cohesive set makes a new form factor feel like a product opportunity rather than a collection of disconnected screens.

FAQ

Can ScreenDuo record an iPhone Duo screen?

ScreenDuo supports Mac, iPhone, and iPad capture workflows, but iPhone Duo is a new device. Verify compatibility against the shipping hardware and OS before a production recording. The workflow in this article is the capture plan to use once the device is supported.

What is the best way to record an iPhone Duo app demo?

Record the app on the screen device and use a separate camera device to show the hardware opening, closing, or changing poses. Keep the sources separate so the edit can prioritize either the interface or the physical action.

Should an iPhone Duo app demo show both displays?

Usually, yes—but only when the change explains the product. Start with the outer display, show the inner display when it adds meaningful space or capability, and include one pose that proves the layout remains understandable.