Grandma YouTube Downloader is a free video downloader. It allows you to get videos off YouTube.com and save them in your computer to play them later on any video player. The application has a very simple and easy-to-use graphical user interface. It is perhaps one of the best interfaces in a downloader that I have seen. However, all that glitters is not gold. In my testing, I was unable to get this application to download a single video. When you have a video URL copied in your clipboard the application will paste it automatically, and all you have to do to start the download is to click "Download Video". Whenever I did that, I got an error window saying that no videos were found. I tried with several different videos and several different types of URLs. I can say for sure that the URLs weren't the problem since my other video downloader managed to download them fine.
Another thing this app lets you do is to extract audio from YouTube videos. This feature saves the audio track of a video into an audio file, but it wasn't working either at the time of this review.