EXTENSION.app is the all-in-one extension app for iOS, iPadOS, iMessage, watchOS, macOS, tvOS and visionOS.■■■ EXTENSION.app for iOS and iPadOS■ In-App Web Browser:- Automatic activation of "Picture-in-Picture" video mode on supported websites.- Simultaneous playback of "Picture-in-Picture" video with other video apps, without sound.■ In-App Video Picker:- Selection of video files from Files app, ...