SSS

# Customize the interface
# Update your name, avatar or description in your profile
# Set your appropriate NSFW policy (display, blur or hide NSFW videos)
# Automatically filter videos depending on many criteria (language, category, live/VOD etc)
# Choose your autoplay policy
# Manage your library
# Use the built-in Watch Later playlist and add easily videos in it
# Organize videos in public or private playlists
# Automatically resume videos from the last time you watched them
# Check your watch history in a dedicated page
# Subscribe to channels
# Subscribe to local or remote channels to be notified when they publish videos
# Display videos of your subscriptions in a dedicated page
# Share and interact with videos and playlists
# Share the video or the playlist URL/embed with attributes (automatically start/stop at, loop enabled, muted...)
# Download a video using a dedicated modal
# Comment, reply and rate videos
# Search videos, channels and playlists
# Search local or remote videos, channels and playlists
# Use many advanced filters (tags, category, licence...)
# Use the video URL, playlist URL or channel handle/URL to fetch remote content

Nothing, it is totally free of charge