rollsee.com
App preview videos for developers
Store listings and feeds both want vertical video, and both punish the flat screen recording most apps ship with.
Vertical by default
1080×1920 at 30fps is the native output, not a crop of a widescreen edit: the same shape TikTok, Reels, Shorts and store previews all want.
Original score, every time
Music and sound effects are generated per cut, so there is no stock library and no copyright claim waiting on your listing or your launch post.
A new cut whenever you ship
Projects remember your product, so the next feature announcement starts from everything Rollsee already learned about your brand.
Questions
Can Rollsee record my actual app?
It films your public product site rather than driving the app itself, and harvests the interface shown there. For most apps that page already shows the screens worth animating.
What resolution is the export?
Watermark-free 1080×1920 MP4 at 30fps for the vertical format, or 1920×1080 for the launch format, mastered to broadcast loudness so it sounds right on every platform.
Do I need to install anything?
No. Everything runs server-side and the result plays in your browser; the export downloads as a normal MP4.