All Video Downloader App HD is a free and full-featured video downloading application for Android devices. It allows you to download and save videos from almost all websites in HD quality. This private video downloader comes with a password-protected vault where you can download videos privately without leaving any traces.

The app is equipped with a download manager that offers 3x faster download speeds. It also supports all video and audio formats, including mp3, m4a, mp4, wmv, m4v, mov, avi, and more. The app auto-detects downloadable videos while you are surfing the internet and lets you download large files. It also allows you to download multiple files simultaneously and in the background while you work. The app also auto-resumes failed downloads.

Overall, All Video Downloader App HD is a great choice for those who want to download and save videos from various websites in HD quality privately and securely. Please note that this video downloader is not for YouTube.