Start from your recordings
Record your app in Simulator or on your device and give the files to your agent. It picks the moments that show each feature and removes the rest.
App Store preview video maker for Mac
Show your app doing its best work.
Bring screen recordings of your app and the features you want to sell. Your AI partner cuts them into a short preview with captions and music, at the size your listing needs.
videoFn gives Claude or ChatGPT the tools to be your editing partner on Mac. Give it the brief, watch the preview and shape the result together. The editor is there whenever you want to make changes yourself.
make an App Store preview for Beacon: sorted list, add a task, focus, tick it off, then the icon
886 by 1920 portrait canvas
cards settle into a sorted list
the new task slides into its slot
focus ring, then a sparkle on the tick
Portrait export, 886 by 1920. Beacon is an example app. videoFn drew its interface for this demo; you bring your own screen recordings.
Works with Claude, ChatGPT and other AI agents
Video rendering runs on your Mac
Free to try. €13.99 once to buy it outright
A preview that sells the app.
One feature at a time
Give each feature its own scene and a short caption. Captions are timed to the music and checked for reading time and contrast.
The right size
Set the canvas to the portrait or landscape size your listing needs. videoFn renders an H.264 file on your Mac, ready to upload with the rest of your listing.
Also: product demo video, social clips, add captions and everything else.
Free to make videos. €13.99 to lose the watermark.
Make the preview on the Mac you built the app on.