App Preview Converter
Make Videos for the App Store
Only for Mac
$2.99
Mac
Turn any screen recording into an app preview that App Store Connect accepts.
App Store Connect rejects app previews for reasons it rarely explains well: the
video runs 14 seconds instead of 15, the resolution is off by a few pixels, the
frame rate is 29.97 instead of 30, or there is no audio track at all. App Preview
Converter handles all of it in one pass.
HOW IT WORKS
1. Drop in a screen recording from your iPhone, iPad, Mac, or the Simulator.
2. Trim the part you want on a filmstrip timeline built around the 15-30 second rule.
3. Pick the device and orientation you are submitting for.
4. Export. The file is ready to upload.
BUILT AROUND THE REQUIREMENTS
- Exact resolutions for iPhone, iPad, Mac, Apple TV, and Vision Pro
- Portrait and landscape output
- H.264 video at a constant 30 fps
- AAC stereo audio, added silently when your recording has none
- Rec. 709 color, the standard App Store Connect expects
- Every export is verified before it lands on disk
A TIMELINE THAT KNOWS THE RULES
You cannot accidentally build an invalid preview. The handles stop at 15 and 30
seconds, and once you hit the limit, dragging slides the whole selection along the
video instead of breaking it. Click anywhere on the filmstrip to jump the preview
to that exact frame.
RECORDING TOO SHORT? STILL FINE
A 9-second recording does not have to be reshot. Turn on Extend to 15 sec and the
last frame holds until the preview reaches the App Store minimum.
FIT OR FILL, SEEN BEFORE YOU EXPORT
Fit shows the whole recording with letterbox bars. Fill crops to the edges. The
preview updates the moment you switch, so what you see is what uploads.
PRIVATE BY DEFAULT
No account, no upload, no network access at all. Your recordings are converted on
your Mac and never leave it.
Made for developers who would rather ship than argue with ffmpeg flags.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
New: Product page header and search result videos. Export looping 21:9 header videos (3840×1646) and 3:2 search result videos (3840×2560) that are ready for App Store Connect. Clips as short as 5 seconds are accepted.
The developer, Sarun Wongpatcharapakorn, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Sarun Wongpatcharapakorn
- Size
- 1.7 MB
- Category
- Developer Tools
- Compatibility
Requires macOS 14.0 or later.
- Mac
Requires macOS 14.0 or later.
- Mac
- Languages
English and 11 more
- English, Arabic, French, German, Hindi, Japanese, Korean, Portuguese, Russian, Simplified Chinese, Spanish, Vietnamese
- Age Rating
4+
- 4+
- Copyright
- © 2026 Sarun Wongpatcharapakorn
