App preview videos: when they help, when they hurt, and the first two seconds

An app preview video sits in the first slot of your screenshots and autoplays, muted, in search results. That sounds like an upgrade. It is only an upgrade if the video beats the screenshot it replaces, and many do not.

What the video is competing with

Your first screenshot, which is a billboard: a promise in large type with the product behind it. A video that opens on a logo, a splash screen or an establishing shot has, for its first seconds, nothing to say. In a search result, those seconds are the whole impression.

The first two seconds

The product in use, with a result visible, and a caption that states the promise. A story appearing with a child's name in it. A scene being read while the text highlights. A stamp landing on a coffee card. The person watching should know what the app does before they decide whether to keep watching.

Length and structure

Fifteen to twenty seconds is plenty. Promise, proof, one more reason, end. Captions on everything, because the default is muted. No music-only sections; silence with captions is better than a soundtrack with nothing to say.

When stills win

Some categories convert better on screenshots alone, especially where the first screenshot's headline is the main selling point and a video would delay it. We have seen both outcomes. Product page optimization lets you test the page with and without the video; do that before committing.

What gets rejected

Preview videos must show the app itself, captured from the device, with only light overlays. Live-action footage, hands holding the phone, and marketing-style compositions are generally not allowed in the preview slot. Save that material for ads.