Is tao really any begter than the free version
And this may be a dumb question but are these apps legal
yes the application is legal it is just a search engine like google but looks for specific things (Music).
what you download MIGHT be illegal, but that really depends on what you download.
There are actually allot of GOOD royalty free artists out there that would just be happy to spread their sound.
Before ThePirateBay went down they where well known for Independent artists Releasing directly through .Torrent (file share networks) as a fast free way to be well known throughout the world. But that's another rant all together.