How to download YouTube videos to your iPad for free

Want to download a YouTube video to your iPad, so you can watch it offline or after the video is taken down? The web is full of videos, after all, but you haven't always got an internet connection on your iPad. You'll need to install an app to do the job for you, but there are free options. Here's how to download YouTube videos directly to your Apple tablet without involving iTunes. And the best part is that it's free.