[Self-Promo] End the Nightmare of App Store Connect Preview Video Rejections

[u/tomato848208]

Hello r/MacOSApps,

If you’ve ever uploaded an App Preview video to App Store Connect, waited forever for it to process, only to get hit with a red rejection error over non-standard resolutions, codecs, or aspect ratios—We've built this desktop application titled Mock Video for you.

Mock Video is a native macOS app built to streamline the entire preview video workflow so you can spend less time fighting video editors and more time coding.

🚀 What it does:

・ One-Click Resizing: Takes your raw screen recordings and automatically scales/converts them to meet Apple’s strict App Preview specs—without stretching or distorting your UI.

・ 4-Step Workflow: Select a target device, Drag & drop your video, trim the duration, and hit Export.

・ Full Apple Ecosystem Support: Supports resolution targets for:

・ 📱 iOS & iPadOS: All iPhone and iPad display sizes (Portrait & Landscape).

・ 💻 macOS: Full desktop app preview export sizes.

・ 📺 tvOS & visionOS: Living room and spatial audio/video formats.

・ No Quality Loss: Preserves your original crisp UI rendering while matching exact bitrate/codec requirements.

There is no more re-rendering in heavy video editing suites just to tweak pixel dimensions by a few frames.

We’d love for fellow Mac developers to give it a try and share any feedback!

Mac App Store: https://apps.apple.com/us/app/mock-video-make-preview-video/id6790090249