1- Vodio
Vodio tracks videos as they’re shared by thousands of people and sources around the world, and organizes them into categories, including: most popular, entertainment, tech, music, sports, news, comedy, science and more. Simply swipe through Vodio’s huge variety of channels and discover videos to enjoy – anytime, anywhere. You can also create personalized video streams to suit your preferences.
2- iTube
iTube allows you to organize youtube videos in playlists, view history of watched videos and bookmark videos.
Features:
- Play Top 100 songs or top 100 from different generes.
- Manage YouTube playlists: Create, rename or delete.
- Search music videos by keyword.
- Rotate to full screen play mode.
- Skip songs with headphones or iPod controls.
- Double Tap on video to zoom in and out, one tap to dismiss controls.
- Works on background.
- Display media info on lock screen (iOS 5+).
3- Jasmine
This is a full-featured YouTube client for iOS. Here is a list of some good features:
- Smooth and responsive interface- Night theme & dimming support for browsing in low light
- Full support for managing playlists
- Remembers your position when returning to long videos
- Parental Controls to curate content and restrict video discovery (PRO)
- Browse and discover channels
- Post comments and replies
- Aggressive filtering for comment spam and channel promotions
- Supports AirPlay
- Share videos via Twitter & Facebook
4- Squrl
It is the one place to discover and watch videos from the most popular content sources available on mobile today. Squrl is also the only mobile service to deliver personalized recommendations based on users interest and viewing behaviors, and the only search engine on mobile integrating both free and premium video including YouTube, Netflix, Hulu, TED, Vimeo, Aol, Blip.tv, Facebook, Twitter, and more.