Why product demos need care
Choose the mobile task the viewer needs to understand, provide its product context and select Reel 9:16 if a vertical placement is the priority. Review the layout in each format: one composition is adapted for the selected aspect ratios, not a raw phone recording.
How DemoVexa makes a video
Connect a product workspace with its code, website or documents. Start a project with a one-line idea and review the generated brief. Edit the script and on-screen captions, choose an AI voice, your own recording or captions with music, then review the planned scenes.
Approve the scene plan to build an animated preview. Check the screens, labels and timing, ask for changes if needed, then render the formats and languages available on your plan. Export and publish the files yourself.
- The product UI is recreated from the workspace context; it is not a captured customer session.
- DemoVexa does not automatically refresh an existing video when code changes.
- Review product claims, sample data, captions and the final preview before sharing.
What to provide
A sample fitness app preview could introduce a fictional daily-planning screen with sample activity data. Keep the example illustrative and replace it with verified product screens and wording before publishing.
Add a local code folder or a reachable website, relevant how-to guides or product documents, and a clear idea of the viewer and task. Select the platform and length in the project brief. If you use a repository, clone it locally and pull the version you want to show first.
What you can export
Export an MP4 in Landscape 16:9, Reel 9:16 or Square 1:1, depending on your plan. A project can also provide on-screen captions, timed SRT or WebVTT subtitles, cover images and draft post copy. Each format and language is rendered separately.
Example workflow
A sample fitness app preview could introduce a fictional daily-planning screen with sample activity data. Keep the example illustrative and replace it with verified product screens and wording before publishing.
Treat this as a sample scenario, not a customer case study or a published DemoVexa video. Use synthetic data and verify the behavior against your own product before release.
Plan your next step
Choose the video type that fits the story, check which formats and languages your plan includes, and leave time to review the finished preview before publishing.
Frequently asked questions
Can DemoVexa make an iOS or Android demo?
DemoVexa can read a local code folder in any language. It does not require a platform-specific integration; how closely scenes match your app depends on the code and product context available.
Is there a vertical mobile video format?
Reel 9:16 is available, alongside Landscape 16:9 and Square 1:1. Which formats you can render depends on your plan, and each layout should be previewed before export.
Can I use it for an app store preview?
You can create a video to use in an app promotion workflow. Check the current App Store or Play Store requirements for permitted dimensions, duration and content before submitting.
Make your next product video with DemoVexa
Download the app to make a video from your code, or start a free trial with 15 renders.