Private Mode to Download Video in Secret.ITube Studio Video Downloader even provides you with a Private Mode to protect your downloaded video info with a designated folder, which could only be opened by yourself once the password is set. 3X faster speed to download videos from YouTube, Facebook, Vimeo, Amazon and other video-sharing sites on your Mac. Aimersoft iTube Studio 2021 Mac download Video in Full HD, 4K, 1440p, 1080p, etc.