Here's how you can view your Google Play videos on your iPad, iPod or iPhone.
1. Install the official YouTube app on your iOS device.
2. Open the app and login to your YouTube account.
3. Swipe right to open the menu (or tap the menu button in the top-left).
4. Go to Purchases in the menu.
5. Tap the Google Play video you want to view.
Read more: CNet