The iPhone, iPod touch, and iPad can access YouTube via the included YouTube app. Just tap the app, search away, and you'll be watching video in no time (though "no time" will be faster if you're connected to a Wi-Fi network).
But what about your favorite YouTube videos? What if you want to watch them over and over again – even when you're not connected to the web (this is especially important on the iPod touch, since it has a Wi-Fi connection only and you can't get on Wi-Fi everywhere)?
In that case, you need a way to save the videos to your device.
You won't be able to do this on your iPhone, iPad or iPod touch – you'll need to use your desktop computer – but once you've got the videos, you'll be all set.
Begin by finding the video at YouTube.
Then go to any one of the services that allows you to save YouTube videos to your desktop. One that I like is Vixy, which is free and web-based.
Enter the web address of the YouTube movie into the box, choose MP4 for iPod/PSP from the drop down and click the start button. When the video is done converting, you can download it to your desktop.
Then, drag the video into iTunes to add it to your iTunes library.
Next, sync your iPhone or other device with your computer. In the video section, you should see the video you just downloaded from YouTube. Check the box next to it and then hit the "sync" button in the bottom right corner of the screen.
The YouTube video is now saved on your device just like any other video – and you can watch it whenever, and wherever, you want.
To watch it, tap the iPod app, and then tap the Videos option (this is usually along the bottom set of icons, unless you’ve re-arranged your iPod app menus). You’ll see a listing for all the videos on your device and the one you just added will be among them.
- iPod Classic and iPod nano – These iPods can play video, but neither of them can connect to the Internet and thus don't have the built-in YouTube app. Like with music, the only videos you can add to the iPod Classic or third-generation or higher iPod nano are those in your iTunes library that you sync to them. So, Vixy is your best bet for getting YouTube videos onto these iPods.