SmartTube

Watch Youtube videos online and download their content -either the entire video or just the audio- with the app SmartTube.

SmartTube's interface has three tabs. The first one shows recommendations, that become more and more personalized as you use the app and watch videos. The second tab shows currently trending videos, as well as the week's top videos farther down on the screen. On the last tab, you can log in to your YouTube or Google account, which creates a more personalized experience as there's already data about each users's preferences, and also lets you to rate and subscribe to other channels.

Found a favorite video you want to download? SmartTube will redirect you to a website for just that, and save the video to your device once it's downloaded.