Duo StudioApp Store marketing assets
APP SCREENSHOT GENERATOR

Turn app screenshots into App Store marketing images.

Duo Studio is a free online App Store screenshot maker for polished product visuals. Place your UI inside an iPhone Duo mockup, customize the background and copy, and export a high-resolution PNG.

Open the editor ↗See how it works
App Store marketing image made with an iPhone Duo mockup

One tool for App Store screenshots and app marketing assets.

Create store-ready promotional images, product page visuals, and social media graphics from the screenshots you already have. The canvas is designed for custom marketing compositions, not as a replacement for Apple or Google’s official submission-size requirements.

Unfolded landscape iPhone Duo mockup for an app marketing image
Unfolded landscape mockup
Folded portrait iPhone Duo mockup for an app screenshot
Folded portrait mockup

App Store and Google Play visuals

Build App Store screenshots, Google Play promotion images, product launch graphics, and app marketing images from one browser-based workflow.

Custom iPhone mockup

Choose the unfolded or folded iPhone Duo frame, then edit its scale, position, rotation, and placement in the composition.

Background and headline controls

Customize gradient or solid backgrounds, headline text, supporting copy, font, color, and footer labels for a consistent product story.

Private local processing

Your PNG, JPG, WebP, or AVIF screenshot is composited in the browser. No account is required and the source image is not sent to a server.

How to make an App Store marketing image

  1. Choose an unfolded landscape or folded portrait iPhone Duo mockup.
  2. Upload your app screenshot and wait for the live preview.
  3. Adjust the device scale, position, background, headline, and supporting text.
  4. Choose a 2853 × 2007 landscape or 2007 × 2853 portrait canvas, then export a PNG.

Frequently asked questions

What is an App Store screenshot generator?

It places an app UI inside a device mockup and combines it with a background and marketing copy to create a polished App Store or product marketing image.

Is Duo Studio free?

Yes. Duo Studio is free to use, requires no account, and exports PNG images directly in the browser.

Are my screenshots uploaded?

No. The image is read and composited locally in your browser.

Is this an official Apple iPhone Duo product?

No. The frame is an independent concept visualization and is not endorsed by Apple.