A simple and functional free application for playing videos from YouTube that does not require Google Play Services to work.

SkyTube is an alternative, free, open-source YouTube application for Android. It allows you to use YouTube comfortably without the need for Google/YouTube account and hence this app only offers read-only access to YouTube.
Features
Innovative Features
Video blocker featuring:
Channel blacklisting
Channel whitelisting
Block videos if their language is not the same as the user's preferred one(s)
Block low-view videos
Block high-dislike videos
Toolbar icon showing number of blocked videos
Watched or partially watched videos are marked accordingly. "Resume playing" feature also implemented
Video swipe controls, including controls for volume, brightness, comments and video description
Bookmark videos
Import subscriptions from YouTube
Play channels' playlists
Download videos
Ability to play the video faster — or slower than live. [New!]
View and download video thumbnails
No adverts when browsing or playing videos
SponsorBlock to skip advertisement segments
Back up and restore bookmarks and subscriptions (all stored locally on your device)
Traditional Features
Explore Featured and Most Popular videos
Browse YouTube channels
Play YouTube videos
View video comments
Search videos, music and channels
Channel subscription & non-intrusive notifications
Subscriptions feed
More features will be added in the near future.