Is this only for Microsoft Store?
No. It is the same underlying app-promo tool, but the defaults and copy are tuned for landscape and desktop-app promo use.
Can I switch to portrait or square if needed?
Yes. The page opens with a landscape default, but the full canvas controls remain available once screenshots are loaded.
Does anything render on a server?
No. Preview and export stay local in the browser, with the final draft video rendered on the device.
How do I add a trailer to a Microsoft Store listing?
Through Partner Center, in the Store listing section, where you upload the video file and a matching thumbnail image. The thumbnail is a separate asset, and a missing one is a common reason a trailer does not appear.
What size should a Microsoft Store trailer be?
Landscape. This page defaults to 1920 x 1080 at 30 fps, which is the right shape for a desktop-first store. Check Partner Center for its current format and size ceiling.
Why is motion set to still by default?
Because a slow zoom across a screenshot of a desktop UI reads as advertising, not as software. Static frames with fades let the interface itself be the message.
Does the trailer need sound?
It is not required, and this tool exports a silent video track. Most Store trailers that get made add a voiceover, so plan on a separate audio pass if this is a public asset.
Can I record my app with this?
No. It animates static screenshots. For a desktop app, a screen recording of the software actually being used is almost always the stronger trailer.