For a vertical tutorial, select portrait framing and preview the demonstrated app in that orientation. For a wide presentation or desktop demonstration, use landscape framing. Do a complete short test that includes any app switching or rotation you expect to use. Changing the destination aspect ratio later can crop controls or introduce borders.
The current site describes free 480p, 720p and 1080p tiers and Pro Source (Native) resolution. Choose the tier that makes the smallest text readable at the destination. More pixels do not fix poor contrast, a hidden button or an unclear demonstration.
App/system sound and microphone sound have separate controls. They are mixed into one stereo output track by default. If the microphone is too quiet in the saved mix, raising the entire track afterward also raises the app sound. Set the balance before the final take.
Use this ten-second test:
Avoid speaker-to-microphone feedback: a source played through speakers may be recorded once through app audio and again acoustically by the microphone. Headphones can help isolate the two paths. Check the actual input route when connecting or disconnecting a headset.
Preview every part of the demonstration, not only the first screen. A free corner on the home screen may cover the Save button later. Keep the presenter overlay away from subtitles and destination-player controls. Test background blur or replacement around hair, hands and fast motion rather than judging a still preview.
The public site describes HEVC MP4 on iOS and H.264 MP4 on Mac. MP4 identifies the container; codec support still matters when another device plays the video. Keep the original exported file until the destination upload and playback have been checked.
Inspect the first frame, a busy middle section and the ending. Confirm that sound starts and ends correctly, that small text remains legible and that no notification exposed private content. For a failed take, keep a short reproducible example for troubleshooting rather than repeating a lengthy capture.
A social video, a client walkthrough and an App Store preview have different requirements. Check the current requirements of the actual destination. A captured video is not automatically eligible for an App Preview slot, and a framed marketing treatment should not be assumed to meet Apple’s in-app footage requirements.
Quick start · Troubleshooting · Official Reel site
Reviewed 2026-11-04. No capture-speed, file-size or quality benchmark is claimed here.