I don't know if any of you know about this or not.
I saw it on YouTube last night and it looks like a decent app, no need to register, it's free and says it has no ads, but I haven't tried it yet so I don't know how good it is.
If you want legal and free, and similar to Tubi. Try Pluto tv, Rakuten tv or Plex apps. Also it's worth watching the Tech doctor on youtube for lots of free apps with epg.
Tubi will compete with the likes of Netflix, Disney+, ITVX and Channel 4's streaming platform as well as the BBC iPlayer.
The platform has been quickly gaining market share in the US where, according to Fox, it has almost 80 million monthly active users.
In the UK, Tubi says it will offer more than 20,000 films and TV series, including content from Disney, Lionsgate, NBCUniversal and Sony Pictures Entertainment.